Video: BMW 6-Series premiere

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BMW starts 2011 with the world premiere of the new BMW 6 Series convertible at the North American International Auto Show in Detroit next week. From the exterior styling it's obvious that this car is more of an evolution of the outgoing car than an all-new model.

Still, it's longer, lower and wider than the old car. Design highlights include the wide, wedged V shape and high waistline, BMW claims this is styled to mimic a boat deck.

To whet your appetites before the official reveal next Monday, check out this video of the new car in action.