The BMW 6 SERIES (2004-07) 630I 2DR COUPE 3.0 SPORT SMG AUTO is a premium, two-door coupe: a stylish, comfortable grand-tourer rather than an everyday hatchback or family SUV. It sits in the UK’s executive-coupe market, pairing an elegant presence with a sporty character and space for occasional rear-seat passengers. The mycarcheck.com picture is limited: just two look-ups covering one distinct VIN, so its figures are clues, not a reliable market-wide average. Those checks show an average private-sale valuation of £2,700, mileage of 142,000 and seven previous keepers; average annual mileage was 3,000. Check each car’s history and condition carefully. Best suited to enthusiasts or couples, it offers a smooth petrol feel and a more distinctive drive than rivals such as the Mercedes-Benz CLK. The SMG transmission adds sporty flavour, but buyers should test it and budget for upkeep; fuel costs will typically exceed those of a small city commuter car.