1937 - 1940 Sonderklasse
Photo courtesy of Jim Craig
Engine: V4, 32 hp, two stroke with 2 additional
pistons
dedicated to scavenging giving the
appearance of a V6. The engine had an oil filled crankcase like a
4 stroke.
Transmission: 3 speed, rear wheel drive
Brakes: Hydraulic brakes on all 4 wheels