Yet despite the 25
percent reduction in capacity and the loss of two cylinders, the new BMW M division engine delivers 10 hp
more than its predecessor, thanks to patented induction process that is claimed to provide vastly improved levels of combustion efficiency, in the process preserving an illustrious 27 year tradition that has seen each incarnation of the M3, the ranks of which have now been reduced to a single four - door sedan model alongside two - door M4 coupe and cabriolet models, boast
more firepower than its direct predecessor.