It had rigid axles , drum brakes and a front - mounted 40 litres ( 11 US gal ) fuel tank .
It was the smallest 6 - cylinder engine produced in Czechoslovakia at the time .
engine had rigid axles , drum brakes and a front - mounted 40 litres ( 11 US gal ) fuel tank .
It was the smallest 6 - cylinder engine produced in Czechoslovakia at the time .