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Opel Calibra
The Opel Calibra is a coupé, engineered and produced by the German automaker Opel between 1989 and 1997. In the United Kingdom, where it remained on sale until 1999, it was marketed under the Vauxhall brand as the Vauxhall Calibra. It was also marketed as the Chevrolet Calibra in South America by Chevrolet, and the Holden Calibra in Australia and New Zealand by Holden.
The Calibra was introduced to belatedly replace the Manta and to counter the Japanese sporting coupés of the period. It employs the running gear of the first generation Opel Vectra, which had been launched in October 1988. Calibra production was based in the Opel factory in Rüsselsheim, Germany, and the Valmet Automotive factory in Uusikaupunki, Finland, where production was consolidated in November 1995. The Calibra was initially only available with front-wheel drive, but from November 1990, four wheel drive became available.
The Opel Calibra was styled by GM's designer Wayne Cherry, and German designer Erhard Schnell. As a front-wheel drive three door hatchback coupé based on the Vectra A chassis, its ride and handling are not significantly better than that of the large family car from which it grew. Though it had a stiffer chassis as a whole (better torsional rigidity in NM/Deg). The 4WD turbo version of the car, which had independent rear suspension, featured the rear axle of the Omega A with some minor alterations to it. Irmscher suspension on the sporty limited editions (like DTM, Keke Rosberg, Cliff and Last Edition) also had sharper handling than base models.
The Vectra A chassis and hatchback rear meant the Calibra was relatively practical compared to many other coupés of this size. It could seat four average-sized passengers (above 175–180 cm only compromised in the rear) and hold 300 liters of luggage.
An innovative design feature was the slim 7 cm high headlamp, which was possible to create using the then new ellipsoid technology developed in conjunction with Hella. The headlamp design was key to the sport coupé's unique design and aerodynamics.
When launched on 10 June 1989, the Calibra was the most aerodynamic production car in the world, with a drag coefficient (Cd) of 0.26. To reach the record Cd figure, the prototype Calibra had to be taken to the DNW wind tunnel in the Netherlands, where models could be tested above a rolling road simulating real life airflow. For the final design smaller alterations were made on the preliminary models: tapering the rear waistline and rear side windows by about 50 mm compared to earlier mockups gave about 0,035 Cd improvement, while another 0,035 improvement was reached by altering panel lines, transition points, integrated front spoiler in front of the tires, engine shield and a panel connecting the fuel tank and the lower edge of the rear bumper. The Calibra remained the most aerodynamic mass production car for the next ten years, until the Honda Insight was launched in November 1999, with a Cd of 0.25.
All later 16V, V6, 4x4 and turbo models had a worse Cd of 0.29, due to changes in cooling system, underbody, use of spoked wheels and glass detail.
The Calibra was built both in Rüsselsheim and at the Valmet Automotive plant in Uusikaupunki, Finland (over 90,000 units). The Porsche Boxster and the Saab 9-3 Cabriolet were also manufactured exclusively there.
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Opel Calibra
The Opel Calibra is a coupé, engineered and produced by the German automaker Opel between 1989 and 1997. In the United Kingdom, where it remained on sale until 1999, it was marketed under the Vauxhall brand as the Vauxhall Calibra. It was also marketed as the Chevrolet Calibra in South America by Chevrolet, and the Holden Calibra in Australia and New Zealand by Holden.
The Calibra was introduced to belatedly replace the Manta and to counter the Japanese sporting coupés of the period. It employs the running gear of the first generation Opel Vectra, which had been launched in October 1988. Calibra production was based in the Opel factory in Rüsselsheim, Germany, and the Valmet Automotive factory in Uusikaupunki, Finland, where production was consolidated in November 1995. The Calibra was initially only available with front-wheel drive, but from November 1990, four wheel drive became available.
The Opel Calibra was styled by GM's designer Wayne Cherry, and German designer Erhard Schnell. As a front-wheel drive three door hatchback coupé based on the Vectra A chassis, its ride and handling are not significantly better than that of the large family car from which it grew. Though it had a stiffer chassis as a whole (better torsional rigidity in NM/Deg). The 4WD turbo version of the car, which had independent rear suspension, featured the rear axle of the Omega A with some minor alterations to it. Irmscher suspension on the sporty limited editions (like DTM, Keke Rosberg, Cliff and Last Edition) also had sharper handling than base models.
The Vectra A chassis and hatchback rear meant the Calibra was relatively practical compared to many other coupés of this size. It could seat four average-sized passengers (above 175–180 cm only compromised in the rear) and hold 300 liters of luggage.
An innovative design feature was the slim 7 cm high headlamp, which was possible to create using the then new ellipsoid technology developed in conjunction with Hella. The headlamp design was key to the sport coupé's unique design and aerodynamics.
When launched on 10 June 1989, the Calibra was the most aerodynamic production car in the world, with a drag coefficient (Cd) of 0.26. To reach the record Cd figure, the prototype Calibra had to be taken to the DNW wind tunnel in the Netherlands, where models could be tested above a rolling road simulating real life airflow. For the final design smaller alterations were made on the preliminary models: tapering the rear waistline and rear side windows by about 50 mm compared to earlier mockups gave about 0,035 Cd improvement, while another 0,035 improvement was reached by altering panel lines, transition points, integrated front spoiler in front of the tires, engine shield and a panel connecting the fuel tank and the lower edge of the rear bumper. The Calibra remained the most aerodynamic mass production car for the next ten years, until the Honda Insight was launched in November 1999, with a Cd of 0.25.
All later 16V, V6, 4x4 and turbo models had a worse Cd of 0.29, due to changes in cooling system, underbody, use of spoked wheels and glass detail.
The Calibra was built both in Rüsselsheim and at the Valmet Automotive plant in Uusikaupunki, Finland (over 90,000 units). The Porsche Boxster and the Saab 9-3 Cabriolet were also manufactured exclusively there.