Alpina, BMW's tuning specialist, has released a teaser image of the next-generation B7 sedan, based on the 2009 7-Series. As is with the current B7, there will be extensive exterior modifications, such as a custom front lip, larger wheels, and a small spoiler out back.

No official details have been released regarding engine specifications, but expect an extensively reworked version of the 4.4-liter V-8 in the current 750i. There's also talk that BMW's upcoming eight-speed transmission may find its way into the next-generation Alpina B7.

+ Motor Authority: Alpina releases teaser for 2009 B7 BMW 7-Series