It would defy physics for the M3/M4 with auto and AWD to be slower in a straight line than the X3M Comp using the same engine and transmission given the X3M Comp is considerably heavier and less aerodynamic. I would expect sub-3.5 sec 0-60 and 11.5 sec @ 120 mph 1/4 mile from a ZF8 equipped AWD M3/M4 based on the numbers C&D got out of the X3M Comp. I imagine manual transmission RWD models will not likely be quite as quick in a straight line.
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