That's hardly an M5 though................Actually it's not an M5. I'd like to see that powerplant in an actual M5 chassis, and see what it would run. I'm willing to bet it would be in the mid 8 sec range.
BMW 325I E30 Chumpcar Race Car
BMW 540iT M-Sport (New Family Hauler)
BMW 135i Msport Daily/track toy