A pair of prototype models of the next BMW 6-Series Convertible have been spied on film. The folks over at Bimmerpost that posted the video support that, like the new Z4, the 2011 6-Series Convertible will most likely be equipped with an electric folding hardtop and that for now, the Bavarians are concealing the roof with a faux canvas top.

Unless someone goes and fiddles around with the top, there’s no way of being 100 per cent certain, but looking at the creases on the roof, we’d say that these test cars appear to feature a classic fabric top.

In any case, the new 6-Series Convertible will continue to be a four-seater while we suspect that the styling will follow the cautious evolution of the firm’s latest models like the Z4, 5-Series and 7-Series, with BMW‘s designers toning down the flame surfacing and eliminating the so-called Bungle butt.

Under the hood, the new 6er’s engines will be sourced from the 2011 5-Series that was revealed last week. The range will comprise of straight-six petrol and diesel engines, and V8 petrols, including the 245HP 3.0-liter turbo diesel in the 630d, the new 306HP 3.0-liter inline-six with a twin-scroll turbocharger in the 635i and the 407HP twin-turbo V8 in the 650i. The M6 models will follow at a later date.

If BMW follows its typical product life cycle of seven years for the 6-Series, then we’ll see the coupe version of the new Bavarian sports car / grand tourer breaking cover sometime next year with the convertible model following shortly after.

Via: Bimmerpost