1985 Sbarro Challenge

The Challenge came close to being a mass-production car by Sbarro’s to date. This uncompromising wedge-shaped car, first seen in 1985, looked like a slice of Gruyere cheese and was claimed to have a Cd figure of just 0.25. The doors folded forward for entry. Initially die Challenge was offered with a twin-turbo Mercedes V-eight engine, but later cars had Porsche engines mounted in the rear. All were capable of storming speeds — up to 180mph (290km/h) in was claimed.