BMW will launch a successor to the X6 shortly after the new X4 arrives next year.

The exact timing for the new SUV's UK introduction remains under wraps, but the new X6 is likely to make its world debut at next year's Moscow motor show, with sales starting during the third quarter of next year.

Based on the same platform as the next X5, the new X6 will follow the form of today's model but with even more aggressive detailing.

"We want to give our sporting models a more individual look, further separating them visually from the more practical models in our line-up," an insider revealed.

The new X6 will also be slightly longer to provide it with added rear legroom.

Engines will include in-line six-cylinder petrol and diesel engines, plus V8 petrol units, with a plug-in petrol-electric hybrid set to arrive in 2015.