Mercedes-Benz 300 SEL 6.3

The Mercedes-Benz 300 SEL 6.3 is a full-sized luxury performance saloon that Mercedes-Benz built from 1967 to 1972. It fitted the 6.3 litre M100 V8 of the flagship 600 limousine into the engine bay of the six-cylinder 300 SEL of the W109 series, an idea that began as a private project of engineer Erich Waxenberger in 1966 and that Rudolf Uhlenhaut approved. The production car was introduced at the Geneva Motor Show in March 1968, produced 250 PS and had a factory top speed of 220 km/h, which made it one of the world's fastest four-door cars of its time. Air suspension and power steering were standard. A total of 6,526 were built, and the 450 SEL 6.9 followed it in 1975.