The next generation M3 is still at least 3 years from its debut, but it’s never too early for speculation, particularly about its powerplant. While the current E9x M3 is powered by the marvelous high-revving V8 engine (S65), it’s been widely speculated that that the next generation M3 will return to using a 6-cylinder engine. Emissions regulations have forced the move, much like the new upcoming F10 M5 getting the more efficient S63 V8 Twin-turbo engine instead of continuing to use the iconic V10.
So far so good. However, according to our source with close ties to BMW M, BMW has not settled on exactly which engine layout the company will use for the F30/F32 M3. Rather, the guys at BMW M are currently testing no less … CONTINUED