The Opel GT Sports Car Experiment That Ended After Six Years

Opel took inspiration from parent company GM and developed their own American style sports car the Opel GT. Resembling a shorter coke bottle shaped Corvette it should have been a huge hit. Whilst it sold well, it didn’t secure a future for Opel as a sports car maker. It is also said that this car was the reason that the Vauxhall XVR project in the UK was cancelled.

The GT was considered a brave move by Opel and was led by designer Erhard Schnell. Instead of forming a more straightforward coupe version of the Kadette by changing the sheet metal, they were a little more radical. Developing the car from the ground up as a model in its own right. Ok, the mechanicals were from the Kadette, but there were many unique things about the GT. The rotating headlamps are for example an unusual feature being manually controlled.

Opel took inspiration from parent company GM and developed their own American style sports car the Opel GT. Resembling a shorter coke bottle shaped Corvette it should have been a huge hit. Whilst it sold well, it didn’t secure a future for Opel as a sports car maker. It is also said that this car was the reason that the Vauxhall XVR project in the UK was cancelled.

The GT was considered a brave move by Opel and was led by designer Erhard Schnell. Instead of forming a more straightforward coupe version of the Kadette by changing the sheet metal, they were a little more radical. Developing the car from the ground up as a model in its own right. Ok, the mechanicals were from the Kadette, but there were many unique things about the GT. The rotating headlamps are for example an unusual feature being manually controlled.

The concept of a front mid mounted coupe was developed by Opel’s Advanced Design Studio in Rüsselsheim, Germany, which opened in 1964. Schnell was the man responsible for how the car looked. “The Experimental GT was based on the B Kadette,” said Schnell. “It
was our initiative, our after-work car and when we rolled it out, the public said, ‘Cool’.

 

The GT was developed in secret and only appeared in front of the public at the Frankfurt Motor Show in 1965. “For the public it was unbelievable, almost inconceivable,” says Schnell, “so management had to react.”

The Opel Test Centre in Rodgau-Dudenhofen was responsible for the development of the GT to get to production.

The concept of a front mid mounted coupe was developed by Opel’s Advanced Design Studio in Rüsselsheim, Germany, which opened in 1964. Schnell was the man responsible for how the car looked. “The Experimental GT was based on the B Kadette,” said Schnell. “It
was our initiative, our after-work car and when we rolled it out, the public said, ‘Cool’.

The GT was developed in secret and only appeared in front of the public at the Frankfurt Motor Show in 1965. “For the public it was unbelievable, almost inconceivable,” says Schnell, “so management had to react.”

The Opel Test Centre in Rodgau-Dudenhofen was responsible for the development of the GT to get to production.

The first Opel GT rolled off the assembly line in 1968. This was a collaboration of French coachbuilder Chausson and Brissoneau & Lotz and Opel. Seen as one of the first examples of Franco-German cooperation, which is now commonplace. Chausson did all of the sheet metal work, from pressing the body panels to welding the structure together, painting and installation of the interior. The partially completed GT was then shipped to Germany for final assembly of the chassis and powertrain.

The Opel GT used a very conventional unitary construction in steel, with a front mounted engine and rear wheel drive. The engine is set well back in the car to help with weight distribution. The front suspension was an upper A-arm and a lower transverse leaf spring. Very much the same set up as the Corvette. The rear was a conventional live axle with coil springs. Disc brakes up front and drums at the rear. There is no power assistance with the steering, but the car only weighed 845 to 940 kg.

There were two engines to choose from. The well-known 1100 four-cylinder with 60 hp from the Kadett and a 90 hp 1900 four from the Rekord. The GT 1900 was the model in the most demand from the start. The top speed of 185 km/h and 0 – 100 km/h acceleration 11.5 seconds with the precise four speed manual transmission was a key attraction.

There was an optional three-speed automatic, which wasn’t a big seller in Europe, but it was in the USA. Some 70 percent of the 103,463 GTs produced went across to America.

The press launch of the GT took place at the Hockenheim race circuit in Germany. From the 21 to 29 October Opel held test days at the track for journalists, dealers, salesmen, customers and racing drivers. 41 Opel GT 1100 and 1900 were available along with the Rallye Kadette and Commodore GS.

The advertising slogan was “Only flying is more beautiful”. Swedish rally drivers Lillebror Nasenius and Sylvia Österberg showed what the new sports car was capable of, including jumps!

Friedhelm Engler, Design Director Exterior at Opel, describes the behaviour of his colleagues back then as “Cheeky! It was pretty naughty to propose a front mid-engine concept based on the Kadett B. Instead of dressing proven mass-production parts in a new outer skin, they had the nerve to do something totally radical – a real Gran Turismo. You could say that the GT is bravery in steel!”

Many thanks to Opel for the images.

Simon

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