The BMW 4 SERIES GRAN COUPE (2014-18) 420D 5DR GRAN COUPE 2.0 DPF SS 190 EU6 M SPORT AUTO8 is a premium five-door fastback: sleeker than a conventional family hatchback, but more practical than a coupé. It sits in the UK’s executive-car market, competing with the Audi A5 Sportback and Mercedes-Benz CLA. Mycarcheck.com data shows 4,861 checks covering 1,865 different VINs, a substantial sample. Across these records, the average private-sale valuation is £12,800, typical recorded mileage is 79,000 miles, and cars average about 10,000 miles a year. The average is just over two previous keepers, useful context when assessing an individual car. Roomy rear doors, a useful boot and sporty M Sport styling make the 420d appealing to commuters and small families seeking comfort without losing everyday practicality. Its diesel engine and smooth automatic suit motorway journeys, while efficient running attracts high-mileage drivers. Check service history and overall condition before buying one.