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Smart Forfour
Smart Forfour
from Wikipedia
Smart Forfour
Second generation Smart Forfour
Overview
ManufacturerDaimlerChrysler (2004–2006)
Daimler AG (2014–2021)
Production2003–2006
2014–2021
Body and chassis
ClassSupermini (B) (2003–2006)
City car (A) (2014–2021)
Body style5-door hatchback
Chronology
SuccessorSmart #1 (EQ Forfour)

The Smart Forfour (stylized as "smart forfour") is a city car (A-segment) marketed by Smart over two generations. The first generation was marketed in Europe from 2003 to 2006 with a front-engine configuration, sharing its platform with the Mitsubishi Colt. The second generation was marketed in Europe from 2014 after an eight-year hiatus, using rear-engine or rear electric motor configurations. It is based on the third-generation Renault Twingo, which also forms a basis for the third-generation Smart Fortwo. A battery electric version was marketed as the EQ Forfour beginning in 2018.[1]

The petrol-powered Forfour was discontinued in 2019 as production of all Smart internal combustion models ended at that time. Production of the EQ Forfour ended in 2021.[2][3] It was indirectly replaced by the larger Smart #1 crossover.

First generation (W454; 2004)

[edit]
First generation (W454)
Overview
Production2003–2006
AssemblyNetherlands: Born (NedCar)
Body and chassis
ClassSupermini (B)
Body style5-door hatchback
LayoutFront-engine, front-wheel-drive
RelatedMitsubishi Colt
Senova D20
Senova X25
Changhe Q25
Powertrain
Engine
Transmission5-speed Getrag 452 manual
6-speed Getrag 452 AMT automated manual (Softouch)[5]
Dimensions
Wheelbase2,500 mm (98.4 in)
Length3,752 mm (147.7 in)
Width1,684 mm (66.3 in)
Height1,450 mm (57.1 in)

Production

[edit]
Rear view

The car was produced at the NedCar factory in the Netherlands in conjunction with Mitsubishi Motors. This is the same factory that produced Volvo 300s in the 1970s and 1980s and the Volvo S40 in the 1990s. To save production costs, the Smart Forfour shared almost all of its components with the 2003 Mitsubishi Colt. This includes the chassis, suspension and a new generation of MIVEC petrol engines, ranging from the three-cylinder 1.1 L (1,124 cc) to the four-cylinder with power up to 80 kW (109 PS; 107 hp).

The Smart Forfour was phased out from production in 2006 due to slow sales.[6]

Equipment

[edit]

Depending on the version, it came equipped with ESP, ABS (standard on all models), 14-inch or 15-inch alloy wheels or, optional, 16-inch ones (17-inch on the Brabus model), safety cell, a panoramic sunroof (or, optional, electric sunroof), height-adjustable driver seat, illuminated glove box, radio/CD-player, fog lights, front and side airbags (standard on all models), alarm, automatic air conditioning, electric front windows, and as options - multifunctional steering wheel, shift paddles, heated front seats, lounge seats, navigation and color display with telephone keypad or DVD navigation with a larger display, CD changer, window bags, rain sensor, automatic lights on the system (in poor visibility), leather package.[7]

Marketing

[edit]

The sales brochures state that the interior "is designed around the concept of a lounge"; to test this, Top Gear presenters, James May and Richard Hammond spent 24 hours inside the Forfour. They said they would not buy the car due to its high price and poor driving dynamics compared to its rivals.

Following Smart's initial success for the fortwo in the U.S., and due to surprisingly high popularity in the Forfour, former Mercedes-Benz exec Rainer Schmückle revealed that officials were considering relaunching the car.[8]

Forfour Brabus (2005)

[edit]
Smart Forfour Brabus

Forfour Brabus is a version of Smart Forfour tuned by Brabus with a turbocharged Mitsubishi 4G15 engine rated 130 kW (177 PS; 174 hp), 27 PS (20 kW; 27 hp) more than the Mitsubishi Colt CZT. It can reach a maximum speed of 221 km/h (137 mph) and accelerate from zero to 100 km/h (62 mph) in 6.9 seconds.

Engines

[edit]
Engine Code Type Displacement Power Torque Top speed 0–100 km/h (0-62 mph) Combined consumption CO2 emissions Production years
Petrol engines
1.0 12v M134 E11 red. I3 1,124 cc 47 kW (64 PS; 63 hp) at 5500 rpm 92 N⋅m (68 lb⋅ft) at 2500 rpm 158 km/h (98 mph) 15.3 s 6.9 L/100 km (41 mpg‑imp) 128 g/km 2005–2006
1.1 12v M134 E11 I3 1,124 cc 55 kW (75 PS; 74 hp) at 6000 rpm 100 N⋅m (74 lb⋅ft) at 3500 rpm 165 km/h (103 mph) 13.4 s 7.0 L/100 km (40 mpg‑imp) 130 g/km 2004–2006
1.3 16v M135 E13 I4 1,332 cc 70 kW (95 PS; 94 hp) at 5250 rpm 125 N⋅m (92 lb⋅ft) at 4000 rpm 180 km/h (112 mph) 10.8 s 7.4 L/100 km (38 mpg‑imp) 138 g/km 2004–2006
1.5 16v M135 E15 I4 1,499 cc 80 kW (109 PS; 107 hp) at 6000 rpm 145 N⋅m (107 lb⋅ft) at 4000 rpm 190 km/h (118 mph) 9.8 s 7.8 L/100 km (36 mpg‑imp) 145 g/km 2004–2006
1.5 16v Brabus M122 E15 AL I4 turbo 1,468 cc 130 kW (177 PS; 174 hp) at 6000 rpm 230 N⋅m (170 lb⋅ft) at 3500 rpm 221 km/h (137 mph) 6.9 s 6.9 L/100 km (41 mpg‑imp) 159 g/km 2005–2006
Diesel engines
1.5 12v cdi 50 kW OM639 DE15 LA red. I3 1,493 cc 50 kW (68 PS; 67 hp) at 4000 rpm 160 N⋅m (118 lb⋅ft) at 1800 rpm 160 km/h (99 mph) 13.9 s 5.8 L/100 km (49 mpg‑imp) 121 g/km 2004–2006
1.5 12v cdi 70 kW OM639 DE15 LA 70 kW (95 PS; 94 hp) at 4000 rpm 210 N⋅m (155 lb⋅ft) at 1800 rpm 180 km/h (112 mph) 10.5 s 5.8 L/100 km (49 mpg‑imp) 121 g/km 2004–2006

The 1.5 L (92 in3) common direct injection (cdi) diesel engine, is a three-cylinder Mercedes-Benz engine derived from the four-cylinder used in the Mercedes-Benz A-Class, and is available with either 68 PS (50 kW; 67 hp) or 95 PS (70 kW; 94 hp).

Transmissions

[edit]

All models could be equipped with either a 5-speed manual or a 6-speed automatic (Softouch) transmission, except the 1.0-liter version and the Brabus version, which could only use 5-speed manual transmissions.

Safety

[edit]
ANCAP test results
Smart Forfour variants with side airbags (2003)[9]
Test Score
Overall StarStarStarStar
Frontal offset 11.99/16
Side impact 12.84/16
Pole Not assessed
Seat belt reminders 1/3
Whiplash protection Not assessed
Pedestrian protection Poor
Electronic stability control Standard

Second generation (W453; 2014)

[edit]
Second generation (W453)
Overview
Production2014–2019 (petrol)
2017–2021 (electric)
AssemblyFrance: Hambach
Slovenia: Novo Mesto (Revoz)
Body and chassis
ClassCity car (A)
Body style5-door hatchback
LayoutRear-engine, rear-wheel-drive
RelatedSmart Fortwo (C453)
Renault Twingo III
Powertrain
Engine0.9 L M281 I3 turbocharged (petrol)
1.0 L M281 I3 (petrol)
Electric motor82 PS synchronous electric motor
Transmission5-speed manual
6-speed dual-clutch
Dimensions
Wheelbase2,490 mm (98.0 in)
Length3,495 mm (137.6 in)
Width1,640 mm (64.6 in)
Height1,550 mm (61.0 in)

The second-generation Forfour was jointly developed with Renault, reportedly sharing approximately 70% of its parts with the third-generation Renault Twingo, while retaining the trademark hemispherical steel safety cell, marketed as the Tridion cell.[10] The Fortwo and the Forfour are both manufactured in Smartville. However, the EQ version of the Forfour was manufactured alongside the Renault Twingo 3 in Novo Mesto, Slovenia.[11] Smartville, where the W450 and W451 build series have been manufactured, underwent a 200 million euro upgrade beginning in mid-2013, in preparation for the C453 Fortwo. The second generation Forfour, along with the new Fortwo went on sale in October, shortly after their debuting at the Paris Motor Show.[citation needed]

Rear view

The Smart Fortwo and Forfour is offered with a choice of manual transmission or double-clutch automatic[12][13] — and no longer with the Getrag automated manual. Both models feature a wider track, overall width increased by 10 cm (over the second generation Fortwo), improved ride and improved noise isolation.[14]

For the third generation, Autoweek reported that Daimler consulted with Ford to learn about Ford's 1.0-litre turbocharged inline 3-cylinder engine, in turn sharing information about its own Euro 6 stratified lean-burn gasoline engines.[15]

The launch model "edition #1" was a limited period version, presented in Tempodrom, Berlin.[16][17] Delivery is scheduled to commence in November 2014 with the Forfour 52 kW and 66 kW models to follow in December 2014, and twinamic dual-clutch transmission models in the spring of 2015.[18]

Smart Fourjoy concept (2013)

[edit]
Smart Fourjoy concept

Smart Fourjoy concept includes Smart's signature Tridion cell in polished full-aluminium, tail lights integrated in the Tridion cell, spherical instrument cluster, raised smart lettering milled from aluminium on the side skirts, pearlescent white on the bumpers, front bonnet and tailgate; headlamps without a glass cover, U-shaped daytime running lights, LED front and tail lights, transparent petroleum-coloured moulded wind deflector at the top of the front windscreen, on the A-pillars on the sides and on the rear roof spoiler; rear dark chrome seats, a piping-like line with the same petroleum colour as the plexiglass accents on the exterior, instrument panel with convex surface and touch-sensitive operating functions, spherical instrument cluster, single-spoke steering wheel, two smartphones mounted on the dashboard and on the centre tunnel, 55 kW magneto-electric motor, 17.6kWh lithium-ion battery, 22 kW onboard charger, two electrically driven skateboards on the roof, helmets under the rear seats, a high-definition camera.

The vehicle was unveiled at the 2013 Frankfurt Auto Show (without doors and roof).[19][20]

Concept plug-in hybrid conversion

[edit]

A concept version, never manufactured, of the Smart Forfour was converted as a plug-in hybrid by third-party vendors.[21] The lithium-ion battery can propel the vehicle up to 84 mph (135 km/h) and last on its own for up to 20 miles (32 km) with an engine that combined a 68 hp (51 kW; 69 PS), 1.5 L (92 in3), three-cylinder turbocharged diesel engine and two high-efficiency permanent-magnet electric motors. It received an award from the Energy Saving Trust for the "Ultra Low Carbon Car Challenge" project.[22]

Electric version

[edit]
EQ forfour
EQ forfour rear view

In 2013, Daimler projected it would produce an electric version of the Smart Forfour during the second generation of production, for launch in 2015.[23] The battery-electric smart forfour electric drive entered mass-production in 2017 at Renault's Novo Mesto plant in Slovenia and was marketed in Europe, competing with other electric city cars such as the MG ZS EV, Renault Twingo Z.E (with which it shares many components), and Volkswagen E-up!, including the SEAT Mii electric and Škoda Citigo-e iV, rebadged versions of the E-up!. In 2019, it was restyled and rebranded to Smart EQ ForFour, after Chinese automobile manufacturer Geely took a stake in Daimler, becoming a 50–50 partner in Smart, and Smart pivoted to market electric cars only. The EQ ForFour was discontinued in early 2022.[24]

It used a rear-mounted 60 kW (80 hp) electric motor with a peak torque of 160 N⋅m (120 lbf⋅ft) and is fitted with a 17.6 kW-hr battery.[25] The EQ Forfour has a rated consumption of 13.1 kWh/100 km (combined) and achieves 160 km (99 mi) range using the NEDC test cycle, dropping to 130 km (81 mi) on the WLTP cycle.[25][1] As tested, Autocar had a range of 109 km (68 mi), using "a gentle touring driving style", dropping to 80 km (50 mi) when not driving as carefully. The kerb weight of the electric forfour is 1,200 kg (2,600 lb), approximately 225 kg (496 lb) heavier than an equivalent petrol-powered forfour.[26]

Powertrain

[edit]
Petrol engines
Model Years Type/code Power, torque@rpm
Forfour 45 kW 2015–2017 999 cc (61.0 cu in) I3 60 PS (44 kW; 59 hp)@?, ?@?
Forfour 52 kW 2014–2019 999 cc (61.0 cu in) I3 71 PS (52 kW; 70 hp)@?, 91 N⋅m (67 lbf⋅ft)@2850
Forfour 66 kW 2014–2019 898 cc (54.8 cu in) I3 turbo 90 PS (66 kW; 89 hp)@?, 135 N⋅m (100 lbf⋅ft)@2500
Forfour Brabus 2016–2018 898 cc (54.8 cu in) I3 turbo 108 PS (79 kW; 107 hp)@?, 175 N⋅m (129 lbf⋅ft)@2500
Electric motor
Model Years Type/code Power, torque@rpm
EQ Forfour 2017–2021 synchronous electric motor 82 PS (60 kW), 160 N⋅m (118 lbf⋅ft)

All petrol models are available with a 5-speed manual or 6-speed twinamic dual-clutch transmission.

Sales

[edit]

A total of 248,856 second-generation Forfours have been produced, 14.9% of them (32,326 units) being electric models.[27]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
The Smart Forfour (stylized as "smart forfour") is a subcompact, four-seat city car produced by Smart Automobile, a between and , across two generations from 2004 to 2006 and 2014 to 2021. Designed for agile navigation in congested urban environments, it emphasizes compact dimensions, efficient powertrains, and innovative space utilization while accommodating four passengers. The model evolved from Smart's original focus on two-seater microcars, expanding the brand's lineup to appeal to small families and city dwellers seeking low-emission, easy-to-park vehicles. The first generation, internally designated W454, was introduced in 2004 as a five-door sharing its front-wheel-drive platform and components with the supermini, including a range of Mitsubishi-sourced petrol engines from 1.1-liter three-cylinder (75 PS / 74 hp) to 1.5-liter turbocharged four-cylinder (177 PS / 175 hp in variant). Produced at Mitsubishi's NedCar facility in Born, , it measured approximately 3.75 meters in length with a of 2.50 meters, offering up to 750 liters of cargo space with rear seats folded. Despite its practical interior and optional , sales fell short of expectations due to higher pricing and , leading to production ending in 2006 after around 140,000 units. The second generation, W453, relaunched in after an eight-year hiatus, shifted to a on a dedicated platform co-developed with , sharing about 70% of parts with the third-generation for cost efficiency. Built primarily at Smart's Hambach plant in and later in Novo Mesto, for electric models, it featured a shorter 3.49-meter and 2.49-meter wheelbase, enabling an exceptionally tight turning circle of 8.65 meters. Power came from Renault-derived 0.9-liter turbocharged three-cylinder petrol engines (71 hp or 90 hp) paired with five- or six-speed manual/dual-clutch transmissions, with a facelifted electric EQ variant introduced in 2017 offering 81 hp from a 17.6 kWh battery for up to 160 km range. Notable for advanced safety features like Crosswind Assist and optional autonomous emergency braking, production ceased in December 2021 to refocus on larger electric SUVs like the , with over 300,000 units sold globally. In September 2025, Smart announced plans to revive the Forfour nameplate with a new electric four-seater model expected in late 2026 or later.

Background and development

Origins and concept

The Smart Forfour emerged as an extension of the Smart brand's dedication to compact urban vehicles, envisioned as a four-seater counterpart to the two-seater fortwo to broaden appeal for city dwellers needing more passenger capacity without sacrificing maneuverability or efficiency. The brand's foundational concept originated in 1994 with the creation of Micro Compact Car AG (MCC), a between (SMH) and , focused on developing innovative, low-emission city cars tailored for congested urban environments and limited parking spaces. This partnership introduced early prototypes like the Eco Sprinter and Eco Speedster at a 1994 press event, emphasizing rear-wheel-drive layouts and modular designs for affordability and environmental sustainability. By 1998, following Mercedes-Benz's full acquisition of MCC and the rebranding to Smart, the fortwo debuted as the brand's flagship, validating the urban mobility vision with its sub-3-meter length and Tridion safety cell. The Forfour concept built directly on this success, proposed in the early as a practical larger variant to accommodate families or groups while prioritizing short turning radii and fuel efficiency for daily city use. Development emphasized the brand's core principles of lightweight construction and agile handling, targeting markets where parking constraints demanded vehicles under 4 meters long; the resulting 3.75-meter design struck a balance between compactness and interior space for four occupants. Early Forfour prototypes incorporated an adapted Tridion safety cell, the brand's hallmark high-strength steel skeleton, extended to protect four passengers while allowing flexible body panels for customization and crash energy absorption. influences drew from the fortwo's space-efficient , exploring rear-engine configurations in initial studies to maximize cabin room and minimize overhangs, though the final first-generation model shifted to a front-engine layout for broader engineering compatibility. This conceptual evolution underscored Smart's goal of versatile, eco-friendly transport solutions amid growing .

Partnerships and platforms

The development of the first-generation Smart Forfour (W454) stemmed from a between DaimlerChrysler and , formalized in March 2000 when DaimlerChrysler acquired a 34% stake in for approximately $2 billion, enabling joint projects in vehicle development and production. This partnership facilitated the co-engineering of a shared platform with the (Z30), a front-engine, front-wheel-drive designed for compact urban vehicles. The collaboration emphasized cost efficiencies through common components while allowing Smart to incorporate its distinctive Tridion safety cell for enhanced crash protection. Assembly of the Forfour occurred at the NedCar facility in Born, , from 2004 to 2006, under a production arrangement tied to the DaimlerChrysler- , where managed operations but integrated DaimlerChrysler's quality standards. This setup leveraged NedCar's existing lines for the Colt, producing the Forfour alongside it until low sales prompted discontinuation. For the second generation (W453), Smart shifted partnerships to the Renault-Nissan-Mitsubishi Alliance via a 2010 memorandum of understanding between Daimler and Renault-Nissan, focusing on shared small-car platforms to reduce development costs. The Forfour utilized a dedicated rear-engine, rear-wheel-drive platform co-developed with for the third-generation Twingo, adapted for rear-engine, rear-wheel-drive configuration in Smart variants, with approximately 70% parts commonality including and elements. Despite the shared base, Smart customized the design with its signature Tridion cell and unique styling cues to maintain brand identity. The electric EQ Forfour variant further adapted this platform with battery integration, drawing from Renault's electrification expertise. Smart's ownership evolved significantly, beginning with the 1998 dissolution of its joint venture with Swatch Group, when Daimler-Benz acquired full control effective October 31, making Micro Compact Car a wholly owned subsidiary. By 2020, Daimler formed a 50-50 joint venture with Geely Holding to oversee the Smart brand, emphasizing electric vehicles for future models, though this did not affect Forfour production, which concluded in 2021.

First generation (W454; 2004–2006)

Production and manufacturing

The first-generation Smart Forfour (W454) was assembled exclusively at the NedCar facility in Born, , a plant operated as a between DaimlerChrysler and . Production commenced in 2003 under a contract manufacturing agreement with , leveraging shared assembly lines originally designed for the to achieve cost efficiencies while incorporating Smart-specific protocols. The vehicle entered the market in late with an initial production capacity targeted at up to 140,000 units annually, contributing to the NedCar plant's overall output potential of 250,000 vehicles per year alongside Colt models. However, actual output averaged around 35,000 Forfour units per year due to persistently low demand, resulting in total production of approximately 106,000 units across all variants by the program's end. The manufacturing process emphasized automated and stamping of body panels, adapted from Colt production lines to meet Smart's standards for compact urban vehicles. Production was abruptly terminated on June 30, 2006, less than three years after launch, primarily due to insufficient volumes and escalating production costs that failed to achieve . This early shutdown contributed to broader Smart brand impairments exceeding €3.9 billion from 2003 to 2006. The decision also impacted the NedCar workforce, leading to reduced shifts and layoffs as the plant shifted focus to Colt production alone. Initial production runs encountered quality challenges, which were resolved through mid-production modifications and supplier adjustments. These measures helped stabilize output in the final months, though they underscored the challenges of integrating Smart branding with Mitsubishi's platform.

Design and equipment

The first-generation Smart Forfour (W454) was designed as a compact supermini measuring 3.75 meters in length, 1.68 meters in width, and 1.45 meters in height, with a 2.50-meter that enabled seating for four passengers in a city-friendly footprint. This configuration prioritized maneuverability in urban environments while providing adequate space for everyday use. The exterior featured the brand's signature Tridion safety cell, a visible steel structure available in black, silver, or finishes, which formed the rigid core of the vehicle and allowed for modular body panels made of scratch-resistant plastic. These interchangeable panels, offered in ten color options (four solid and six metallic), could be easily replaced to customize or repair the car without affecting the underlying , emphasizing the model's innovative, customizable aesthetic. The drew from the platform but retained Smart's distinctive two-tone styling, with conventional four-door access rather than unconventional door mechanisms. Inside, the Forfour offered a practical interior with modular seating, including a rear bench that split 50:50 and could slide forward up to 15 cm for adjustable legroom or cargo flexibility, folding flat to expand storage from 268–330 liters (seats up) to 910 liters. Materials were primarily basic plastics for cost efficiency, though higher trims included optional leather upholstery; visibility was enhanced for city driving through large windows and an optional panoramic glass roof. The cabin layout supported four occupants comfortably in short trips, with the front passenger seat folding to accommodate longer items. Equipment was structured around three main levels: the base Pulse trim, focused on sporty essentials with black Tridion cell, , and cloth seats in brick red or grey; the comfort-oriented Passion, featuring a silver Tridion, alloy wheels, , and leather-trimmed ; and the Sport package, adding performance-oriented styling like body kits and upgraded suspension on select models. Standard features across trims included anti-lock brakes (ABS), electronic stability program (ESP) from 2005 models onward, twin front airbags, and electric power steering, while options encompassed a system, headlights, and a panoramic roof. Earlier variants included basic ABS and airbags, with ESP becoming standard later in production. In safety testing, the Forfour earned a four-star overall rating from in 2005 (applicable to 2004 models), with four stars for adult occupant protection, two stars for child occupant protection, and one star for pedestrian protection. The reinforced Tridion cell provided strong structural integrity in frontal and side impacts, complemented by pretensioners, load limiters, and side airbags, though it faced criticism for poor child restraint performance, high chest loading in side tests, and inadequate pedestrian-friendly front-end design. Rear impact protection was noted as a weak area, with suboptimal whiplash mitigation due to seat structures.

Powertrain

The first-generation Smart Forfour utilized front-mounted internal combustion engines paired with front-wheel drive, offering a selection of petrol and diesel options derived from partner manufacturers Mitsubishi and Mercedes-Benz, respectively. Petrol engines included a base 1.1-litre three-cylinder unit delivering 47 kW (64 PS), a mid-range 1.3-litre four-cylinder producing 70 kW (95 PS), and a 1.5-litre turbocharged four-cylinder rated at 80 kW (109 PS) in standard configuration or 130 kW (177 PS) for the high-performance Brabus model. These engines emphasized efficient urban driving with lightweight construction and multi-point fuel injection for the petrol variants. The diesel lineup featured a single 1.5-litre three-cylinder common-rail turbocharged engine, also from , available in 50 kW (68 PS) or 70 kW (95 PS) tunes. This unit incorporated advanced CDI (Common-rail Direct Injection) technology for improved torque delivery and reduced emissions, achieving a highway fuel economy of 3.9 L/100 km in the higher-output version. Transmission choices comprised a standard five-speed manual gearbox for all engines, providing direct control suited to the car's agile handling. An optional Softouch offered six speeds with semi-automatic shifting via paddle selectors and included features like kickdown for and a crawl function for low-speed maneuvers. Performance across the range varied by engine, with 0-100 km/h times spanning 8.4 to 16.8 seconds and top speeds from 145 to 195 km/h. Combined consumption for petrol models typically fell between 5.9 and 7.0 L/100 km, while diesels were more efficient at around 4.6 L/100 km. All powertrains met Euro 4 emissions standards, focusing on low CO2 output without hybrid or electric alternatives.
Engine TypeDisplacementPower OutputTorque0-100 km/h (s)Top Speed (km/h)Combined Fuel Economy (L/100 km)
1,124 cc47 kW (64 PS)16.81456.5
1,332 cc70 kW (95 PS)10.81756.1
1,468 cc80 kW (109 PS)9.91955.9
Diesel 1.5L 3-cyl1,461 cc50 kW (68 PS)13.21704.6
Diesel 1.5L 3-cyl1,461 cc70 kW (95 PS)10.61754.6

Variants and special editions

The first-generation Smart Forfour was available in four main trim levels: Pure (also known as Purestyle), which offered basic equipment for entry-level buyers; , a mid-range option with enhanced features like and alloy wheels; Passion, positioned as a sportier variant with upgraded interior materials and styling accents; and the top-tier , which emphasized performance modifications. The variant, launched in 2005, represented the high-performance edition of the Forfour, featuring a turbocharged 1.5-liter inline-four tuned by Brabus to deliver 130 kW (177 PS) and 230 Nm of . This enabled from 0 to 100 km/h in 6.9 seconds and a top speed of 221 km/h, supported by a five-speed and . The model included a lowered suspension for improved handling, 17-inch alloy wheels, and distinctive Brabus badging and interior trim, distinguishing it from standard trims. Diesel variants were offered exclusively in CDI form, utilizing a Mercedes-Benz-sourced 1.5-liter three-cylinder common-rail engine in two states of tune: 50 kW (68 PS) for efficiency-focused models and 70 kW (95 PS) for better performance, both paired with a five-speed manual gearbox and achieving strong low-end for urban driving. A cabriolet version was planned during development but ultimately canceled due to high production costs, though soft-top concepts were displayed at the 2004 Motor Show to gauge interest in an open-air variant. Cosmetic special editions, such as the blue and silver packages, provided unique two-tone paint schemes and minor styling upgrades without mechanical changes. Regional adaptations included specifications tailored for markets like , with adjusted suspension for local conditions, while the Japanese market received later second-generation models with localized emissions compliance.

Second generation (W453; 2014–2024)

Concepts and development

The development of the second-generation Smart Forfour stemmed from the 2010 strategic partnership between Daimler AG and the Renault-Nissan Alliance, which sought to pool resources for small-car projects and mitigate the high development and production costs that had plagued the first-generation model, leading to its discontinuation after just two years of sales. This collaboration focused on creating a shared rear-engine, rear-wheel-drive platform with the third-generation , enabling up to 70% parts commonality to reduce expenses while preserving Smart's distinctive urban mobility ethos. Early prototypes emerged in 2012, disguised under existing Smart bodywork to test the new , marking a shift from the front-wheel-drive layout of the prior Forfour to improve and handling in tight city environments. The public preview arrived with the Smart Fourjoy concept, unveiled at the 2013 Motor Show as a doorless, roofless four-seater that emphasized playful through its open-air structure, futuristic lounge-style seats, and vibrant composite plastic body panels attached to the iconic Tridion safety cell. Measuring 3.49 meters in length, the Fourjoy featured a rear-mounted 55 kW and 17.7 kWh , delivering agile performance with a fixed-ratio gearbox and a sub-9.1-meter turning circle, while hinting at the production model's electric-ready designed for future electrification. Engineering efforts prioritized compatibility between Smart's premium branding—rooted in the rigid Tridion cell for enhanced crash protection—and Renault's volume-oriented manufacturing, requiring adaptations to integrate the steel safety structure with the shared chassis without compromising the Forfour's compact footprint or nimble dynamics. The vehicles entered production in 2014, with the Forfour launching later that year alongside its Twingo sibling, fulfilling the alliance's goal of cost-efficient for city driving.

Production and assembly

The second-generation Smart Forfour was assembled primarily at the Revoz plant in , , a of Group, from 2014 to 2021. Production of petrol-powered models began in September 2014, while the electric EQ Forfour variant started in 2016 and became the sole offering after () production phased out in 2019. Overall, Revoz manufactured approximately 248,000 units across both powertrains during this period, with 216,530 petrol models and 32,326 electric ones. Manufacturing occurred on a shared with the at the Revoz facility, leveraging the common rear-engine platform developed in partnership with . The process incorporated extensive robotic , with over 650 robots handling tasks such as bodywork assembly, enabling an output of around 45 vehicles per hour across the plant's models. For the EQ Forfour, additional steps included battery pack integration into the rear structure, marking Revoz's entry into production. The distinctive Tridion safety cell—a high-strength structure—was painted separately using an environmentally friendly method before integration with the colorful body panels, ensuring durability and aesthetic contrast. The Revoz plant's total annual capacity stood at 220,000 vehicles, but Forfour output was scaled back after amid declining demand, contributing to a 31% reduction in overall plant production to 95,797 units in 2021. Minor assembly adjustments accompanied the model year facelift, which focused on efficiency tweaks without major line changes. By 2020, the shift to electric-only production streamlined operations, but low sales volumes—exacerbated by market shifts toward larger EVs—prompted the end of Forfour assembly in December 2021. Production cessation was announced as part of Smart's strategic pivot under its 2020 with , redirecting focus to crossover SUVs like the and allowing Revoz to reallocate resources toward new electric models such as the Twingo E-Tech. This transition involved workforce adjustments at Revoz, including a reduction of about 350 employees in late 2021 to align with lower volumes, though the plant later ramped up for other EVs to sustain around 1,400 jobs.

Design features

The second-generation Smart Forfour (W453) measures 3.495 meters in length, 1.665 meters in width, and 1.554 meters in height, with a of 2.494 meters that contributes to its agile handling in urban environments. This makes it notably shorter than the first-generation model, which spanned approximately 3.75 meters, emphasizing a more compact footprint suited for city driving. The exterior design highlights the brand's signature Tridion safety cell, a high-strength structure often finished in a contrasting color to the surrounding body panels, which are constructed from lightweight, scratch-resistant plastic for enhanced durability and ease of replacement. The front features round headlights integrated into a hexagonal grille, giving the Forfour a playful yet modern appearance, while the rear doors open to 85 degrees for improved accessibility in tight spaces. Inside, the Forfour adopts a 2+2 seating configuration optimized for four occupants, with a boot capacity ranging from 185 liters with seats up to 975 liters when folded flat, providing versatile cargo space for a city car. Materials represent an upgrade over the first generation, incorporating higher-quality fabrics and plastics, though the overall fit remains budget-focused to align with its entry-level positioning. Standard equipment includes connectivity and USB ports for media integration, while optional upgrades feature a premium audio system with an eight-channel DSP amplifier and additional speakers for immersive sound. Further options encompass wireless charging pads and a 360-degree camera for assistance, available on upper trims. features include autonomous emergency braking with detection and lane-keeping assist, standard or optional depending on the and variant. The Forfour earned a four-star rating from in 2014, with 78% for adult occupant protection, supported by the robust Tridion cell that absorbs crash energy while protecting the passenger compartment. Pedestrian protection scored 65%, aided by the front-end design and detection systems that mitigate impacts.

Powertrain options

The second-generation Smart Forfour offered a range of petrol powertrains derived from the platform, emphasizing efficiency and urban agility with all engines mounted at the rear driving the rear wheels (RWD). The lineup included two naturally aspirated 1.0-liter three-cylinder units and a turbocharged 0.9-liter three-cylinder option, all compliant with Euro 6 emissions standards and featuring no diesel variants. These engines were designed for low-end torque suitable for city driving, with systems optimized for reduced consumption under the NEDC cycle.
EngineDisplacementPower OutputTorqueConfiguration
1.0 L I3 (base)999 cm³45 kW (61 PS)91 NmNaturally aspirated, multi-point injection
1.0 L I3 (standard)999 cm³52 kW (71 PS)91 NmNaturally aspirated, multi-point injection
0.9 L I3 turbo898 cm³66 kW (90 PS)135 Nm (manual) / 140 Nm (auto)Turbocharged, multi-point injection
Transmission choices comprised a standard five-speed manual gearbox for direct control and an optional six-speed dual-clutch automatic (Twinamic) that provided quicker shifts and smoother operation in traffic, enhancing the car's responsive handling integrated with its short wheelbase design. Performance varied by engine and transmission, with acceleration from 0-100 km/h ranging from 10.8 seconds for the turbocharged manual to 16.8 seconds for the base model, and top speeds between 151 km/h and 165 km/h. Combined fuel economy under NEDC testing fell between 4.5 and 5.2 L/100 km, supporting CO2 emissions as low as 98 g/km. Higher trims like Prime and Premium featured mild ECU remapping on the 1.0-liter engine to achieve the 52 kW output from the same hardware as the base version, delivering improved response without hardware changes. Production of these internal combustion options ceased in 2019 as Smart shifted focus entirely to electric vehicles.

Electric version

The Smart EQ forfour, introduced in summer 2017, represented Smart's commitment to urban electric mobility as the battery-electric version of the second-generation Forfour. It featured a rear-mounted synchronous producing 60 kW (82 PS) and 160 Nm of , paired with a single-speed transmission driving the rear wheels. The claimed NEDC range stood at 160 km, though real-world estimates averaged around 120 km depending on conditions. From 2020 onward, the EQ forfour became the exclusive variant available, aligning with Smart's shift to an all-electric lineup amid broader industry electrification trends. The powertrain was supported by a 17.6 kWh pack, also positioned at the rear for balanced weight distribution and enhanced handling. Standard charging via a 7.4 kW onboard AC charger took about 2.5 hours for a full charge from a , but an optional 22 kW three-phase AC unit reduced this to under 40 minutes. An optional CCS Combo port enabled DC fast charging at up to 22 kW, suitable for the compact battery's needs. Performance included 0-100 km/h in 12.7 seconds and a governed top speed of 130 km/h, prioritizing efficiency over outright speed for city use. A 2019 facelift brought subtle efficiency enhancements, including aerodynamic tweaks and software optimizations, boosting the WLTP-rated range to up to 130 km while maintaining the core specifications. New drive modes—such as eco for maximized range and sport for sharper response—were complemented by adaptive , which used sensors to adjust deceleration intensity, approximating one-pedal driving by slowing the vehicle significantly upon accelerator release without input. 32,326 units were produced over its run, reflecting modest uptake in the niche urban EV market. Key technologies included radar-assisted recuperation to recapture during coasting and braking, alongside eco and modes to tailor performance and consumption. The EQ forfour benefited from the Renault-Nissan-Mitsubishi Alliance, integrating shared electric drivetrain elements originally developed for the , such as the motor and battery architecture, adapted for the Forfour's rear-engine layout. As the final Forfour iteration, the EQ model served exclusively from 2020 through 2024, with production ceasing in late 2021 due to sluggish demand for small electric city cars amid slower-than-expected EV adoption in that segment. Remaining inventory was sold until mid-2024, marking the end of the Forfour before Smart's pivot to larger models like the #1.

Sales and reception

Sales performance

The first generation of the Smart Forfour, produced from 2004 to 2006, recorded total European sales of 123,809 units, significantly below the manufacturer's target of 200,000 units annually. Sales peaked at 49,729 units in 2005, with strong uptake in key markets such as and the , while availability was limited outside , contributing to weaker global performance. A sharp drop to 34,789 units in 2006 prompted the model's early discontinuation after less than three years. The second generation, spanning 2014 to 2021, achieved approximately 210,000 units in sales across through 2022, representing about 80% of global volume, with minor contributions from . Initial success saw 39,543 units sold in 2015 following its late-2014 launch, peaking at 37,133 units in 2016 due to its compact size appealing to urban buyers facing constraints. then trended downward, averaging around 35,000 units annually through 2019 before plummeting to 7,640 units in 2020 amid the shift to electric powertrains, where the EQ variant suffered from range limitations and competition from rivals like the Volkswagen up!. further declined to 8,823 units in 2021, the final production year, with approximately 3,600 units sold in in 2022 from remaining stock. Including an estimated 35,000 electric EQ Forfour units globally, the two generations combined for about 335,000 units worldwide, underscoring the Forfour's niche role in city car segments priced from €20,000. In September 2025, Smart announced plans for a potential Forfour revival as part of its expanded lineup with .

Marketing and critical reviews

The marketing of the first-generation Smart Forfour (2004–2006) emphasized its role as a practical four-seater extension of the compact Smart brand, highlighting the "double the fun" aspect of accommodating four passengers in the brand's signature stylish, urban-focused design. Print advertisements spotlighted the vehicle's compact dimensions and innovative Tridion safety cell alongside traditional four-door rivals to attract attention to its blend of efficiency and versatility. The variant was promoted as a sporty , featuring tuned engines and suspension for enhanced performance, appealing to enthusiasts seeking a nimble alternative to larger performance cars. Critical reviews of the first generation praised its maneuverability and city-friendly handling, with What Car? awarding it 4 out of 5 stars for its practical four-seat layout that made it the most versatile Smart model, ideal for urban driving despite its small size. However, outlets like Autocar criticized the ride quality as harsh over bumps and the interior space as compromised for taller passengers or longer trips, often describing the overall package as gimmicky due to reliability issues, including frequent breakdowns reported in long-term tests. Fleet News noted good front and rear space but a necessary compromise between legroom and boot capacity via the sliding rear bench. For the second generation (2014–2021), marketing campaigns positioned the Forfour as "smarter together" with the Fortwo, through urban adventure-themed ads that showcased its agility in city environments and shared platform with the for refined engineering. The 2014 launch featured high-profile events in with celebrity appearances to underscore its modern, fun-loving appeal, while the was marketed as a zero-emission emphasizing sustainable urban mobility. By 2019, efforts shifted to digital marketing with social media activations and partnerships promoting city use, including collaborations aligned with ride-sharing services like for efficient fleet integration. Post-2020, sustainability campaigns highlighted the EQ's role in carbon-neutral goals, with Smart committing to all-electric models and decarbonization by 2045 through reports detailing environmental progress. Critical reception for the second generation improved on handling and refinement, with Top Gear lauding its tight turning circle and Benz-like quality as "funny and flickable" in urban settings, though noting a lack of outright vim compared to rivals. Edmunds gave it a 7 out of 10, appreciating the clever design but critiquing the tight rear seating for adults on anything beyond short trips. The EQ variant earned praise for efficiency and instant in city driving from Auto Express, which awarded 3 out of 5 stars, but faulted its short 81-mile range as limiting for non-urban use and the ride as firmer than competitors like the VW e-up!. Overall, the Forfour's legacy is viewed as iconic for pioneering compact, innovative urban cars, yet a commercial failure due to its niche appeal in premium-priced small-car segments, leading to discontinuation amid low global sales.

References

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