The BMW 5 SERIES (2007-10) 523I 4DR SALOON 2.5 190 M SPORT AUTO is a large, premium four-door saloon, aimed at buyers wanting more space and comfort than a family hatchback. In the UK used-car market, it sits among executive cars such as the Mercedes-Benz E-Class and Audi A6, offering a more sporting image alongside everyday practicality for longer journeys. mycarcheck.com has recorded 139 look-ups across 30 distinct VINs, a snapshot rather than a full-market count. Checks show an average private-sale valuation of £2,600 and average most recent recorded mileage of 125,000 miles; typical annual mileage is 6,000, while cars average just over five previous keepers. Individual examples will vary. The 523i suits commuters and families seeking space, a boot and comfort on trips. M Sport trim adds a sharper look, and smooth petrol power with road manners makes it enjoyable to drive. Against executive rivals, it stands out for its driver-focused character, though running costs are higher than a smaller car.