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Mazda MX-5 (NB)
The Mazda MX-5 (NB) is the second generation of the Mazda MX-5 manufactured from 1998 until 2005. The model continued the MX-5's philosophy of being a lightweight, front mid-engine, rear-wheel-drive roadster while featuring numerous performance improvements, however lacking its predecessor's retractable headlamps. The NB is also the only generation to feature a factory-built turbocharged variant in the form of the Mazdaspeed MX-5.
The redesigned MX-5 was previewed at the Tokyo Motor Show in October 1997. In February 1998, Mazda released the second-generation MX-5, production code NB, for the 1999 model year, the 1998 model year was skipped. The NB featured a more powerful engine and external styling cues borrowed from the third generation Mazda RX-7, designed in 1995 by Tom Matano. Prices in the United States, the main market for the MX-5, started at US$19,770.
Although many parts of the interior and body were different, the most notable changes were the headlamps: the first generation's retractable headlamps no longer passed pedestrian safety tests and were replaced by fixed ones. The new car grew slightly in width compared to the earlier model and was slightly more aerodynamic than the original, with a drag coefficient of Cd=0.36. Other notable improvements include a glass rear window with defogger for the convertible top and an optional hinged wind deflector behind the seats.
The NB continued to employ four-wheel independent suspension, with enlarged anti-roll bars at the front and rear, but the wheels, tires and brakes were significantly upgraded: anti-lock braking system was offered as an option; alloy wheels were now 14-inches (360 mm) or 15-inches (380 mm) in diameter and 6-inches (150 mm) in width, depending on the trim package; sports models were equipped with the larger wheels and 195/50VR15 tires.
The BP-4W engine remained at 1.8 L (110 cu in) but received several minor updates. The engine compression ratio was raised from 9.0:1 to 9.5:1 by adding slightly domed pistons. The intake cam was changed to a solid lifter design with a stronger cam; the intake runners in the head were straightened and the intake manifold was mounted higher up. Mazda's Variable Intake Control System was introduced, which effectively gave a long narrow intake manifold at low rpm for better swirl, changing to a short, free-flowing manifold at high rpm for maximum breathing. Power output of the new engine was quoted at 104.4 kW (140.0 bhp) with 157 N⋅m (116 lbf⋅ft) of torque.
The 1.6 L (98 cu in) B6 engine remained available in Europe and Japan. The base-model 1.8 L (110 cu in) NB could reach 100 km/h (62 mph) in 7.8 s and had a top speed of 210 km/h (130 mph).
In 1999, Mazda celebrated the 10th anniversary of the MX-5 with the 10th Anniversary Model, a limited edition featuring some until-then exclusive features, namely a 6-speed manual transmission and Bilstein shock absorbers; 15 inch polished aluminum wheels with 195/50R15 tires and a Torsen limited-slip differential as standard. Performance figures were slightly different, with quicker acceleration and higher top speed than the standard 5-speed model. The model's nickname among owners and enthusiasts was 10AM or 10AE (as in "10th Anniversary Edition"). The car had a unique Sapphire Blue Mica (called Innocent Blue in Japan) paint colour with two-toned black leather and blue Alcantara seats and floor mats, matching 3-spoke Nardi leather wrapped steering wheel and shift knob, BOSE audio system, bright gauge rings, carbon grained center console panel and stainless steel scuff plates. The addition of the sixth gear resulted in different performance results, with 0–100 km/h (62 mph) in 7.6 seconds, 0.3 seconds faster than the standard 5-speed model, according to Car and Driver, and 0.4 seconds faster according to Motor Trend. Also thanks to the new 6-speed, its top rated speed increased from 210 to 214 km/h (130 to 133 mph). Combined fuel consumption improved from 8.5 to 8.0 L/100 km (33 to 35 mpg‑imp; 28 to 29 mpg‑US).
Each car was sequentially numbered on a badge on the driver-side front quarter panel. A "Certificate of Authenticity" with the same number came with each car, signed by Mazda President James E. Miller and dated 10 February 1999. On certain markets, a gift set was also included, consisting of a 1:43 scale diecast model, two Seiko-branded wristwatches (his and hers) with matching blue faceplate and Miata logo, and metal keychain in the form of the Miata logo, all encased in a luxury blue velvet box.
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Mazda MX-5 (NB)
The Mazda MX-5 (NB) is the second generation of the Mazda MX-5 manufactured from 1998 until 2005. The model continued the MX-5's philosophy of being a lightweight, front mid-engine, rear-wheel-drive roadster while featuring numerous performance improvements, however lacking its predecessor's retractable headlamps. The NB is also the only generation to feature a factory-built turbocharged variant in the form of the Mazdaspeed MX-5.
The redesigned MX-5 was previewed at the Tokyo Motor Show in October 1997. In February 1998, Mazda released the second-generation MX-5, production code NB, for the 1999 model year, the 1998 model year was skipped. The NB featured a more powerful engine and external styling cues borrowed from the third generation Mazda RX-7, designed in 1995 by Tom Matano. Prices in the United States, the main market for the MX-5, started at US$19,770.
Although many parts of the interior and body were different, the most notable changes were the headlamps: the first generation's retractable headlamps no longer passed pedestrian safety tests and were replaced by fixed ones. The new car grew slightly in width compared to the earlier model and was slightly more aerodynamic than the original, with a drag coefficient of Cd=0.36. Other notable improvements include a glass rear window with defogger for the convertible top and an optional hinged wind deflector behind the seats.
The NB continued to employ four-wheel independent suspension, with enlarged anti-roll bars at the front and rear, but the wheels, tires and brakes were significantly upgraded: anti-lock braking system was offered as an option; alloy wheels were now 14-inches (360 mm) or 15-inches (380 mm) in diameter and 6-inches (150 mm) in width, depending on the trim package; sports models were equipped with the larger wheels and 195/50VR15 tires.
The BP-4W engine remained at 1.8 L (110 cu in) but received several minor updates. The engine compression ratio was raised from 9.0:1 to 9.5:1 by adding slightly domed pistons. The intake cam was changed to a solid lifter design with a stronger cam; the intake runners in the head were straightened and the intake manifold was mounted higher up. Mazda's Variable Intake Control System was introduced, which effectively gave a long narrow intake manifold at low rpm for better swirl, changing to a short, free-flowing manifold at high rpm for maximum breathing. Power output of the new engine was quoted at 104.4 kW (140.0 bhp) with 157 N⋅m (116 lbf⋅ft) of torque.
The 1.6 L (98 cu in) B6 engine remained available in Europe and Japan. The base-model 1.8 L (110 cu in) NB could reach 100 km/h (62 mph) in 7.8 s and had a top speed of 210 km/h (130 mph).
In 1999, Mazda celebrated the 10th anniversary of the MX-5 with the 10th Anniversary Model, a limited edition featuring some until-then exclusive features, namely a 6-speed manual transmission and Bilstein shock absorbers; 15 inch polished aluminum wheels with 195/50R15 tires and a Torsen limited-slip differential as standard. Performance figures were slightly different, with quicker acceleration and higher top speed than the standard 5-speed model. The model's nickname among owners and enthusiasts was 10AM or 10AE (as in "10th Anniversary Edition"). The car had a unique Sapphire Blue Mica (called Innocent Blue in Japan) paint colour with two-toned black leather and blue Alcantara seats and floor mats, matching 3-spoke Nardi leather wrapped steering wheel and shift knob, BOSE audio system, bright gauge rings, carbon grained center console panel and stainless steel scuff plates. The addition of the sixth gear resulted in different performance results, with 0–100 km/h (62 mph) in 7.6 seconds, 0.3 seconds faster than the standard 5-speed model, according to Car and Driver, and 0.4 seconds faster according to Motor Trend. Also thanks to the new 6-speed, its top rated speed increased from 210 to 214 km/h (130 to 133 mph). Combined fuel consumption improved from 8.5 to 8.0 L/100 km (33 to 35 mpg‑imp; 28 to 29 mpg‑US).
Each car was sequentially numbered on a badge on the driver-side front quarter panel. A "Certificate of Authenticity" with the same number came with each car, signed by Mazda President James E. Miller and dated 10 February 1999. On certain markets, a gift set was also included, consisting of a 1:43 scale diecast model, two Seiko-branded wristwatches (his and hers) with matching blue faceplate and Miata logo, and metal keychain in the form of the Miata logo, all encased in a luxury blue velvet box.