Well, somebody did engineer a better 2 liter turbo and that somebody was Mercedes AMG with their 355 horsepower 2.0 liter M133 engine. Volkswagen poached the engineer responsible for the Mercedes M133 engine and is tasking him with besting it. A 375+ horsepower 2.0 liter turbo is in the works over at Audi.
That leaves BMW on the sideline with their N20 which was quickly and easily superceded by both Mercedes and Audi before anyone could even blink. Does BMW need to respond to the challenge? Mercedes is using the M133 motor in their 45 AMG models and Volkswagen and Audi are both preparing models with their new high powered four-cylinder.
Mercedes, Audi, and Volkswagen will all have four-cylinder cars that out perform the BMW M235i with its N55 six-cylinder. Isn't now the perfect time to create an F22 M2 model? Wouldn't an M built N20, an S20 engine, be the perfect choice?
The M235i does not have a DCT option. Imagine if BMW built the M2 with a 375 horsepower S20, gave it a DCT, and then think about how this would be the closest model to ever be a spiritual successor to the E30 M3.
The argument of course will be that the N55 motor can put out more power as it is a larger six-cylinder. The counterpoint would be that then an M2 would not have a real M motor (the 1M fiasco all over again) and it would step on the toes of the M4 big brother with just a tune. An M2 with a four-cylinder, M4 with a six-cylinder, and an M6 with an eight-cylinder just fits very neatly.
A four-cylinder would also be lighter and could be placed further back in the chassis for better handling balance. The M2 with such a motor would then beat its rivals where it matters, in the actual driving experience offering rear wheel drive and higher fun factor. Isn't that what a BMW M car is supposed to be? Additionally, the motor would not be able to out-power the M3/M4 keeping those owners happy just as the M3/M4 is not able to eclipse the M5/M6 maintaining the hierarchy.
If BimmerBoost were in charge of BMW this engine and car would already be on the drawing boards. It just makes too much sense not to do it. The problem is BMW seems more interested in plastic electric cars than competing with real driving machines.