With a design inspired by both the new 7-Series and Z4 Roadster, the 2011 BMW 6-Series’s new architecture undertaking some serious testing at Germany’s famed Nurburgring. The 6 Series mule was spotted at the Green Hell revealing a new front bumper with a massive air dam, reshaped headlights, a more prominent double kidney grille and a redesigned rear-end.

Under the hood BMW is rumored to keep the same engine as the current model, the only change being the 4.8 Liter V8 being replaced by a smaller 400 HP 4.4 Liter turbocharged V8 from the BMW 750i. Whereas the top of the line M version will get the same 4.4-liter twin-turbo V8 engine from the new BMX X6M.

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