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We've already confirmed that the redesigned F10 BMW M5 will have a turbocharged V8. Today we learned that it will have a new, twin-clutch gearbox (in lieu of today's single-clutch automated manual transmission) with eight forward gears.

The new M5 sedan goes on understanding in mid-2011, so we're guessing it'll be the 2012 BMW M5. Above is our spy video of the super sedan at the Nurburgring.

First Look: 2011 BMW 5 Series