The BMW 5 Series (2003-07) 545i 4dr Saloon 4.4 SE SMG Auto is a spacious, premium four-door executive car, sitting above mainstream family saloons in the UK used market. Its 4.4-litre V8 and automated SMG gearbox give it a powerful, distinctive character compared with an ordinary 5 Series. mycarcheck.com records 548 look-ups across 170 distinct VINs, showing interest in this older model. Checks show an average private-sale valuation of £1,500 and average recorded mileage of 127,000 miles; typical annual mileage is 3,000. The average keeper count is 6.4, so review each car’s history carefully. It’s best suited to drivers wanting comfortable long-distance travel, strong acceleration and an engaging feel compared with conventional executive rivals, rather than low running costs or first-car affordability. It can suit couples or families needing a saloon, but age, fuel use and upkeep deserve close attention. A well-documented example is key for buyers.