Originally Posted by Jake C
Hmm fine line. If they push the 4 cylinder past the 335i in HP and TQ then they will have to increase the 335i.
Not really, because this is an M car. The M V8 (S63) makes as much power as the non-M V12 (N74), and the upcoming M 6 cylinder will make more power than the non-M V8 (N63). So, the M I4 can similarly make more power than the non-M I6 (N55).