The CW 311 is a supercar study presented in 1978. The name was the result of its cw value, 0.311.


Eberhard Schulz, the designer for Porsche in the 1970s had a vision of a successor to the Mercedes-Benz 300SL. For a partner, he found the tuner Rainer Buchmann. Together they developed the CW 311 based on the Mercedes and Porsche parts. The Mercedes-Benz star was put on the car without asking permission from the manufacturer. Because of the amount of publicity the car was getting, Daimler-Benz, allowed them to keep it. The CW 311 is the only car developed independently of Mercedes-Benz which may carries the star.

The successor was released in 1983, being the Isdera Imperator 108i.


The body of Isdera consists of fibreglass whichis mounted on a tubular space frame.

The car was fitted with the Mercedes M-100 engine from the 450 SEL 6.9. The nearly seven-litre eight-cylinder was able to produce 375 hp. The car was on par with the Italian Lamborghini Countach and Ferrari 512 BB.

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Isdera vehicles

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