The BMW 5 SERIES (2003-07) 530D 4DR SALOON 3.0D SE 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 in the executive-car class alongside the Audi A6 and Mercedes-Benz E-Class, offering a smart, understated alternative. mycarcheck.com records 564 look-ups covering 231 different VINs, a useful, sizeable sample of interest in this older 530d. Checks show an average private-sale valuation of £1,200 and average recorded mileage of 155,000 miles; typical annual mileage is 7,000. The cars averaged almost six previous keepers, so histories can vary considerably. That sizeable diesel engine gives the 5 Series relaxed performance, while the saloon body and comfortable cabin suit commuting, motorway journeys and families. It is best for drivers who value space and a composed drive over compact size or low running costs. Before buying, check service records, condition and history carefully.