04/07/2008 05:16. of Bimmer’s flagship sedan—the — is sprouting up all over the Web today as the first bits of news and photos leak out. The 2009 BMW 750i will use the X6’s 4.4-liter twin-turbo V8, with just a touch over 400 hp.

But the exciting news is that the 7 will soon get a version of the big joint venture from GM, Mercedes-Benz, Chrysler and BMW: the Two Mode hybrid system . That’s likely to boost the big Bimmer’s fuel economy by roughly 25 to... // Popular Mechanics