The BMW 6 SERIES CONVERTIBLE (2015-18) 650I 2DR CONVERTIBLE 4.4 V8 SS 450 EU6 SPORT AUTO8 is a large, four-seat luxury convertible at the premium end of the UK market. Its powerful V8 and automatic gearbox deliver effortless pace, while the folding roof makes relaxed, open-air touring its speciality. It rivals the Mercedes-Benz E-Class Cabriolet and Audi A5 Cabriolet. It’s best suited to couples or small households seeking comfort, performance and open-air motoring, and makes a stylish choice for weekends or occasional commuting. The cabin is refined and well equipped, but running costs are higher than for smaller convertibles, and luggage and rear-seat space are limited. Choose it for its distinctive blend of V8 power, comfort and prestige rather than everyday economy. mycarcheck.com recorded three checks across three VINs: average mileage was 30,000, annual use 5,000 miles, around 1.3 previous keepers, and average private-sale valuation £24,300 in this small sample.