The BMW 4 SERIES GRAN COUPE (2017-21) 420I 5DR GRAN COUPE 2.0 SS 184 EU6 SPORT PROFESSIONAL MEDIA AUTO8 is a premium five-door hatchback, blending coupé-inspired styling with everyday practicality. In the UK it sits between family hatchbacks and executive saloons, offering a smart, more distinctive alternative to a conventional BMW 3 Series or rivals such as the Audi A5 Sportback and Mercedes-Benz CLA. Mycarcheck records 183 checks covering 77 distinct VINs, a useful sample of vehicles checked. Its data shows an average private-sale valuation of £14,700 and average recorded mileage of 49,000 miles; typical annual mileage is 8,000. The cars had about two previous keepers on average, giving buyers helpful context when assessing an individual example. The 420i suits commuters and small families seeking comfort without losing an engaging drive. Its five-door layout makes rear-seat access and everyday luggage easier than in a traditional coupé, while Sport Professional Media trim adds an upscale feel. Expect premium running costs; compare service history, condition and mileage before buying.