The MERCEDES-BENZ E CLASS (2002-06) E320 4DR SALOON 3.0 CDI AVANTGARDE AUTO is a large, premium four-door diesel saloon, suited to buyers seeking comfort and space rather than a small city car. In the UK used market, it is an executive-class choice, facing rivals such as the BMW 5 Series and Audi A6. Mycarcheck checks recorded 478 look-ups across 203 distinct VINs, giving a sizeable snapshot of cars checked. The average private-sale valuation is £1,900, while the average latest recorded mileage is 137,000 miles. Average annual mileage is 6,000 miles, and cars had about four previous keepers on average, useful context when assessing an example. With a roomy cabin, relaxed automatic drive and diesel suited to journeys, it works well for families, commuters and motorway travellers. Avantgarde trim adds a smarter, well-equipped feel, while comfort is a draw against German rivals. Check condition and service history carefully on older, high-mileage examples.