The water-cooled, top-controlled four- cylinder - four- stroke - in-line engine with one or two compressors had a displacement of 1089 or 1221 cm³ and an output of 37-66 kW (50-90 hp) in suction mode and 48-132 kW (65-180 hp) in compressor operation.
Via the gearbox flanged to the engine block and a Cardan shaft, with the driving force being transmitted to the rear wheels.
The car's skeleton frame, which was forked at the front and rear, consisted of welded steel U-profiles and had a central tube.
[2] At the 24 Hours of Le Mans in 1950, drivers Václav Bobek and Jaroslav Netušil were initially able to keep up well.
The usual racing fuel at the time was a mixture of petrol, ethanol, and acetone.