The BMW 3 SERIES (1998-06) 320D 4DR SALOON 2.0 ES AUTO is a compact executive four-door saloon, offering a more premium feel than mainstream family cars while remaining practical for UK driving. Its diesel engine and automatic gearbox suit longer commutes, motorway trips and drivers who prefer relaxed, easier progress in traffic. It sits among rivals such as the Audi A4 and Mercedes-Benz C-Class. Mycarcheck.com records 500 look-ups across 64 VINs, making this a meaningful sample of interest in this older BMW. The average private-sale valuation is £700, with average recorded mileage of 152,000 and annual mileage of 10,000. Cars have averaged 5.7 previous keepers, so check each vehicle’s history, condition and servicing carefully. The 320d saloon is best for commuters or small households wanting a comfortable, composed car with boot space and diesel range, rather than a city-focused runabout. Compared with family saloons, its appeal is a more engaging drive and premium badge; age and mileage make condition more important than reputation.