The BMW 5 SERIES (2003-07) 525D 4DR SALOON 2.5D SPORT AUTO is a large, premium four-door diesel saloon, aimed at buyers wanting more space and comfort than a family hatchback. In the UK used-car market, it sits among executive cars, traditionally compared with the Audi A6 and Mercedes-Benz E-Class. Its understated styling gives it a smart, grown-up presence. It suits regular commuters, couples and families who value a roomy cabin, a comfortable ride and strong long-distance ability. The automatic gearbox makes busy traffic easier, while the diesel engine is well suited to motorway journeys. Sport trim adds a more purposeful look and feel, giving this BMW 525d saloon a more engaging character than many comfort-focused rivals, without losing its everyday usefulness. Mycarcheck.com records 994 checks across 321 VINs, a strong sample. Average recorded mileage is 157,000 miles, annual mileage 7,000, with 8.3 previous keepers on average and a £1,600 private-sale valuation.