The BMW 4 SERIES CONVERTIBLE (2013-18) 420D 2DR CONVERTIBLE 2.0 DPF SS 190 EU6 SE PROFESSIONAL MEDIA AUTO8 is a premium, four-seat open-top car, offering a distinctive polished feel above mainstream cabriolets. Its 2.0-litre diesel and automatic gearbox make it a comfortable, stylish choice for longer UK journeys. Across 70 mycarcheck.com look-ups covering 22 distinct VINs, checked examples averaged £12,800 in private-sale value, 70,000 miles and 7,000 miles annually. Owners averaged just under two previous keepers. It is a useful snapshot, not a full-market census, and suggests established examples with moderate use. It suits commuters and couples wanting open-air trips without giving up comfort or rear seats, rather than buyers needing family-car space. Its diesel engine delivers economical cruising, while sleek styling and assured handling distinguish it from rivals such as the Audi A5 Cabriolet. If considering a used BMW 420d convertible, check service history, roof operation and vehicle history.