The BMW 7 Series is a technological powerhouse, with more gadgets and gizmos than the space station. Okay, that may be an exaggeration... But the BMW 7 Series launches the luxury saloon into the unknown, proudly going where no saloon has gone before. But does this mean the 7 Series is all show and no go? How does it compare to rivals like the Mercedes S-Class, Audi A8 and Jaguar XJ? Find out what
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