The INFINITI Q50 (2015-19) 4DR SALOON 2.2D DPFR SS 170 EU6 SPORT AUTO7 is a premium, four-door diesel saloon aimed at buyers who want more space and comfort than a hatchback. In the UK it sits in the executive-car class, offering a distinctive alternative to German rivals. mycarcheck.com records 498 look-ups covering 224 distinct VINs, a substantial sample. The average private-sale value is £9,600 and average recorded mileage is 63,000 miles; typical annual use is 9,000 miles, with around two previous keepers. This Q50 suits a comfortable everyday commute, long-distance company travel or families wanting a roomy boot and rear-seat space. Its 170hp diesel and seven-speed automatic suit relaxed motorway driving, while Sport trim adds a purposeful feel. Its appeal is a refined, distinctive design and premium feel at used prices often below better-known rivals; compare condition, service history and running costs before buying.