The next-generation BMW 6 Series Convertible has taken to the Nürburgring, as shown in these new spy pictures. Check out the new rims.

Spies are snapping away at the upcoming BMW 6 Series Convertible. Recently it was spied with less camouflage at the rear end, showing off a brake light and a larger BMW emblem. Then last week they caught it with its canvass cap off.

Now we have the latest pictures of the company's flagship two-door honing its handling skills around the Nürburgring. Thank goodness because we can see the wheels and how good they look. The bodywork is also less covered.

BMW will do the usual and give the 6 Series, both the Coupe and Convertible, a similar engine range to the 5 Series. That includes a turbocharged 3.0-litre with 225kW (302 bhp/ 306 PS), a 4.4-litre twin turbo V8 pushing 300 kW (402 bhp / 408 PS) and an M6 fitted with a twin turbo V8. The M6 will probably be good for well over 400 kW (536 bhp / 544 PS) and a 0 - 100km/h time of under 4.5 seconds. An 8-speed automatic transmission will be fitted to work with fuel-saving systems like start/stop and brake regeneration.

The all-new BMW 6 Series Convertible goes on sale in 2011.

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