 All Praga automobile production stopped by 1947, but was restarted in 2011 when Praga constructed the R4S.It utilizes a 3.2 liter V8 based on the Suzuki Hayabusa engine and produces 530 BHP, with a total weight of only 88 kilograms.A feature on the R4S are the markings for camber and toe, which eliminates the need of advanced tools, with a specific amount of "clicks" representing a certain degree of camber or toe.