The BMW 6 Series Coupe (2015-18) 640d is a large, premium two-door coupe: a stylish alternative to executive saloons, rather than a practical hatchback or family SUV. Its long, low shape and four-seat cabin give it real presence, while the automatic gearbox and strong diesel engine suit relaxed, quick journeys. mycarcheck.com has recorded 48 checks covering 16 distinct VINs, offering a useful snapshot of cars examined. The average recorded mileage is 65,000, with about 10,000 miles driven yearly; cars have averaged nearly three previous keepers. An average private-sale valuation of £14,400 provides a reference point, though condition and history matter. This 640d is best suited to drivers wanting a long-distance cruiser with room for occasional passengers, not maximum everyday practicality. Against rivals Mercedes-Benz E-Class Coupe and Audi A7, it stands out for its styling and brisk, refined feel. The BMW 6 Series Coupe blends grand-touring comfort with a sporty image.