The BMW 6 SERIES (2004-07) 645CI 2DR CONVERTIBLE 4.4 is a premium four-seat convertible sitting above saloons and aimed at buyers wanting open-air comfort with a sense of occasion. It is more stylish grand-touring car than practical family car, with a long, low profile and distinctive presence on British roads today. Mycarcheck.com records 86 look-ups across 21 VINs, a helpful snapshot of this older model. Checks show a private-sale valuation averaging £3,300 and recorded mileage averaging 102,000 miles; annual mileage averages 2,000. The data indicates about six previous keepers, so check service history and ownership carefully before making your final purchase. It suits couples or enthusiasts seeking weekend drives, rather than first-time drivers or households needing low-cost transport. The 645Ci’s powerful, smooth character and folding roof make it special, though running costs and fuel use can be substantial. Against Mercedes and Jaguar convertibles, it blends comfort, presence and engaging driving feel.