The Bergspyder is powered by the air-cooled 2-liter eight-cylinder boxer engine used in the type 771. This engine had its first use in 1962 in the Porsche 718 RS 61 and already had a Bosch injection system for mixture preparation. The valves were operated by two overhead camshafts with vertical shaft drive. The engine delivered up to 191 kW (260 hp) at 8,800 rpm and had a compression ratio of 10.5: 1. The car a top speed of around 260 km/h (161 mph).