Though no more cosmetically revealing, these photos show two F10 M5's in testing of both a V8 and V10 engine!
This is revealed to us by Scott26/7. However, which engine it will receive is not yet known. What a beast of a car this will be, regardless of which engine is chosen.
And some info from mapezzul on the V10 vs. V8 decision process:
Quote:
Originally Posted by mapezzul
Having personally spoken to the engineers on this project (F10 M5), they are currently (and have been) exploring the V10 and V8 routes for this vehicle. Here is an inside tip- if the German "clause" in the US emissions rules goes into effect it may be a V10- if not we will see a TT V8, to deal with the emissions issues. They can get performance of the V8 up there but from a marketing standpoint the V10 is a kick in the pants of other brands. The V10 will be smaller in displacement than the current engine and be turbo charged as well, featuring a trick induction system similar to the CCM on the X5/X6 ///M.
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