The ARVW (Aerodynamic Research Volkswagen) concept car was built by Volkswagen in the end of the 1970s, initially for aerodynamic research to investigate the influence of a vehicle's shape on its fuel consumption at high speeds.

A tuned, six-cylinder turbodiesel engine and a conventional gearbox were used, while the body was made from aluminium and composite materials.

The ARVW was the fastest diesel car in the world in 1980, reaching a top speed of 362.07 km/h (225 mph).

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