In its 93 year history, BMW has only produced two generations of the 6-Series: the original from 1976 to 1989, and the current model introduced in 2003. But these days a product cycle over five years is growing long in the proverbial tooth, so the Bavarian automaker is preparing to launch the third-generation 6 by 2011.
Click above for high-res gallery of the 2008 BMW 6-Series by AC Schnitzer
Diesel engines continue to be all the rage in Europe while they're just beginning to gain ground again in the U.S. As proof that diesels aren't just considered high-mileage motors for city cars, we offer up these spy shots of the BMW 635d, a version of the 6-Series that will be rocking the automaker's twin-turbo 3.0L diesel engine. The motor in the 635d should produce about 286 hp and 428 ft-lbs. of torque. Motor Authority expects a 0-60 time of about six seconds combined with what will likely b