Kevin Harney
Active Member
I believe that may be do with the generation discrepancy. The F10 M5 is quoted officially at 4.2 (Motor Trend got 3.7) and I believe the E90 M3 is quoted at at 4.7 (Motor Trend got 4.2 for coupe). The F80 M3 is quoted at 3.9 /4.1 (Motor Trend got 3.8), but I believe the F10 numbers are due for an update.
Why are you comparing the current M5 with the past M3 ? Compare current to current.
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See what BMW says here...
and here...