The inline-six-powered M cars are gaining a new pre-chamber combustion system to help meet Euro 7 compliance standards, but it should also improve efficiency when being pushed hard.
The BMW M2, M3, and M4 are getting a greener six-cylinder S58 this year, but performance won’t be affected in any way.
BMW has trickled down the racing technology to the straight-six engines of its M-badged cars like M2, M3 and M4, which will ...
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