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Originally Posted by upsidedownfunnel
I doubt there will be much a difference mechanically between the S58 in the M2 and M4. Isn't the M2C S55 almost identical to the M4 S55? A simple tune would probably bring it to near parity. The work BMW has done in refining their turbo I6 from N54 > N55 > B58 has been impressive to say the least. I think there's a good chance they'll make at least one more, though.
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Yes, the S55 is identical in mechanics, across the model ranges, with the exception of the ancillary water-injection system in the M4 GTS. I'm just a little worried that they might cut corners, but I more than likely have nothing to really be concern about.
Also, they're already in deep talks about hybridizing their fleet, so all-electric M cars are not too far, on the horizon. One would assume..
So this might possible be one of their last full ICE strait 6 motor.. Who knows
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