BMW 5 SERIES (2003-07) is a premium executive car, sold in the UK mainly as a saloon, with an estate version for extra carrying space. It sits above family hatchbacks and rivals the Mercedes-Benz E-Class and Audi A6, appealing to buyers wanting comfort, room and an engaging drive on longer trips. mycarcheck.com records 37,591 look-ups across 14,236 distinct VINs, a substantial sample. Checks show an average private-sale valuation of £2,100, average recorded mileage of 148,000 and about 6.6 previous keepers. These figures suggest many examples are now affordable, well-used cars, so condition and service history matter more than badge appeal alone. The 5 Series suits commuters and families wanting a spacious cabin and relaxed motorway journeys; the Touring estate adds practicality. It feels more substantial and driver-focused than mainstream alternatives, though running costs can be higher. A carefully checked example can deliver executive comfort for modest money in the used-car market.