The MAZDA 6 (2015-18) 4DR SALOON 2.2D SKYACTIV DPF SS 150 EU6 SPORT NAV 6SPD is a roomy, four-door family saloon, sitting among larger mainstream cars rather than hatchbacks or SUVs. It competes with the Ford Mondeo, Volkswagen Passat and Vauxhall Insignia, offering a sleek look and a more driver-focused feel. mycarcheck.com has recorded 2,184 checks across 862 VINs, a substantial sample of interest in this model. Checks show average private-sale valuation of £6,700 and average recorded mileage of 80,000 miles; typical annual mileage is 9,000, with about two previous keepers. These figures offer useful context, not a valuation or guarantee. This diesel saloon suits families and commuters wanting space, a boot and relaxed travel; it is less suited to short urban trips. Sport Nav adds navigation and a feel, while the 150hp engine balances pace with economy. Compared with rivals, the Mazda stands out for sleek styling and driving manners.