The BMW 3 SERIES (2005-12) 318D 122 4DR SALOON 2.0D M SPORT is a premium four-door diesel saloon, positioned between mainstream family cars and executive models in the UK used-car market. Its sporty M Sport styling adds presence, while the rear doors and boot suit everyday errands and passenger trips. Mycarcheck.com records 830 look-ups covering 290 distinct VINs, a substantial sample for this model description. Checks show an average private-sale valuation of £1,700 and recorded mileage of 143,000; average annual use is 7,000 miles. The typical example has had nearly seven previous keepers, so check each car’s history and condition. This 318d suits commuters and small families wanting a comfortable, composed car for journeys, with diesel economy and a more engaging feel than mainstream saloons. It competes with Audi A4 and Mercedes C-Class models, and is often valued for balanced handling and premium appeal; condition and service history matter greatly.