The BMW 4 SERIES CONVERTIBLE (2013-18) 420D 2DR CONVERTIBLE 2.0 DPF SS 190 EU6 M SPORT AUTO8 is a premium, four-seat, two-door convertible, sitting between everyday family cars and pricier luxury drop-tops. Its folding roof brings open-air appeal, while the diesel engine and automatic gearbox suit regular longer journeys. Mycarcheck.com records 2,024 checks covering 749 distinct VINs, a substantial sample for this model. Across those checks, average private-sale value is £14,400, average recorded mileage is 59,000, and annual mileage averages 8,000; cars have had about 2.4 previous keepers. These figures offer useful context, not a guarantee for any individual car. This 420d M Sport is best suited to couples or households wanting a commuter that can make weekend trips feel special; rear access and space are less convenient than in a saloon. Against Audi A5 and Mercedes C-Class convertibles, it stands out for sporty styling, drive and efficient character.