The BMW 4 SERIES COUPE (2017-20) 420D 2DR COUPE 2.0 DPF SS 190 EU6 SPORT 6SPD is a premium two-door diesel coupé: sleeker and more driver-focused than a family hatchback, but still practical enough for everyday use. In the UK market, it sits between mainstream coupés and pricier luxury grand tourers, appealing to buyers wanting style without stepping up to a larger car. mycarcheck.com has recorded 75 checks covering 24 distinct cars, a useful sample of buyer interest. Its data puts the average private-sale value at £15,200, with average recorded mileage of 47,000 miles and annual use around 11,000 miles. Cars checked had about 1.8 previous keepers on average, suggesting many have had relatively few owners. The 190hp diesel suits commuters and couples seeking economical longer journeys, with punch for overtaking. Its cabin and composed ride make it a compelling alternative to the Audi A5, though rear access is less convenient.