The BMW 7 SERIES (2002-08) 730I 4DR SALOON 3.0 SPORT AUTO is a large, premium four-door saloon, sitting at the top end of the used-car market rather than among everyday family hatchbacks. Its petrol engine and automatic gearbox are aimed at relaxed, refined travel, with a spacious cabin and a strong presence suited to executive duties or comfortable long-distance journeys. mycarcheck.com records 247 look-ups covering 56 different VINs, giving a useful snapshot of cars checked. The average recorded mileage is 140,000, annual mileage 10,000, and average keeper count is about 8.4; the average private-sale valuation is £1,600. These are historical sample averages, not a quote or guarantee for any individual car, so condition and paperwork deserve careful attention. Compared with Mercedes-Benz S-Class and Audi A8 rivals, it offers imposing comfort with BMW’s more driver-focused character. It best suits experienced buyers seeking a spacious, well-equipped cruiser who can budget for upkeep.