M5 is getting the new engine used in the new X5M/X6M but very likely with "only" 530-540 HP due to a different exhaust and cooling system design.

Still:  it is going to be the fastest BMW M5 series production car EVER.

Rumors indicate 4.2 sec from 0-100 kph and under 13 sec from 0-200 kph.

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RC (Germany) - Rennteam Editor 997 Turbo, Cayenne Turbo S, BMW M3 Cab DKG, Mini Cooper S JCW