Please don t believe everything Scott writes. He has been wrong a few times. He likes to hype the internet. I have listen a few times to him but i stopped reading his posts.
Last thing bmw wants is a high power 4 cil turbo with a lot of lag. If you want a lot of horse power out of a 4 cil engine you need bigger turbo s and that means more lag. A new M2 needs at least 350hp to make sales over a M135i.
Why is the 1M that good because it has almost the throttle response of a normal aspirated engine. A lot of base power is already coming from the 3.0 6 cil. The boost is not that high. Then you a get a nice throttle response.
I have driven/owned evo s and subaru s with 350hp and that is a lot throttle lag compared to the 1M.
I don t think bmw is going to develop a new ///M engine for the M2. They want to make money. The M2 is not the car which have the sales of an M3/M4 so if they want to make money of it it needs to be a partly parts bin car like the 1M is. That s not a bad thing like we all know now!!!
I think the best way is to put in detuned M3/M4 engine in it with aproxx 350hp.
First of all why does the 1M exist.
Because it uses a lot of parts from the M3 E92. Complete new development of an 1M would never happen. It all about the money guys. I think the same counts for M2. Maybe they use the same engine of the 1M and rework it to get better co2 and add 10hp.
I do think they are testing a 4 cil in an M2. But after a few back to back tests with an 1M they know which way to go.