The BMW 6 SERIES COUPE (2015-18) 640I 2DR COUPE 3.0 SS 320 EU6 M SPORT AUTO8 is a premium two-door grand tourer, combining sleek style with sporting appeal. M Sport trim adds purpose, while its automatic gearbox and smooth six-cylinder petrol engine make longer journeys relaxed and brisk. Mycarcheck.com has recorded 106 checks covering 40 distinct cars, a useful snapshot of this sought-after used coupe. The average private-sale valuation was £21,700, with average recorded mileage of 42,000 and annual mileage of 8,000. Cars checked had about two previous keepers on average, offering context when comparing individual examples. It suits couples and drivers seeking comfort and presence for commuting, weekends and longer trips, rather than family practicality. Against the Mercedes-Benz E-Class Coupe and Audi A7, it stands out for sporty handling, refined cabin and grand-touring comfort. A 640i blends pace with comfort; check its history, condition and running costs before buying.