The BMW 6 SERIES (2007-10) 635D 2DR CONVERTIBLE 3.0 286 SPORT AUTO is a four-seat luxury convertible, aimed at buyers wanting open-air style with grand-touring comfort rather than a practical family car. In the UK used market, it sits above everyday convertibles, offering a more powerful, premium alternative to mainstream soft-tops. Mycarcheck.com records show 929 checks covering 269 distinct VINs, a substantial sample for this version. The average private-sale valuation was £6,300, with average recorded mileage of 112,000 miles and annual use of 5,000 miles. Cars had about 4.6 previous keepers on average, so condition and service history deserve careful attention. This 635d suits couples seeking weekend trips or relaxed long-distance travel; rear seats are best for occasional passengers. Its diesel power and automatic gearbox deliver pace, while the folding roof adds theatre. Against a Mercedes-Benz CLK or Audi A5 Cabriolet, it feels distinctive, but may cost more to maintain.