The BMW 6 SERIES (2007-10) 635D 2DR COUPE 3.0D SPORT AUTO is a large, premium two-door coupe: a stylish, long-distance car rather than a practical family hatchback or everyday city runabout. In the UK used market, it offers a distinctive alternative to executive saloons, pairing a luxurious feel with a strong diesel engine and automatic ease. mycarcheck.com has recorded 1,579 look-ups across 571 different VINs, a useful sample of buyer interest. Checks show an average private-sale value of £5,100 and 136,000 miles; typical annual use is 7,000 miles. The average keeper count is nearly six, so check service history and ownership details carefully. Best suited to couples or drivers wanting comfortable motorway trips with presence, it is less convenient for rear passengers and tight parking. Its smooth, effortless pace and coupe styling set it apart from rivals such as the Mercedes-Benz CLS and Jaguar XK, while running costs deserve careful budgeting.