The PEUGEOT 406 (1996-04) 4DR SALOON 2.0 HDI 90 GLX AC SN is a four-door diesel family saloon: a roomy, comfort-focused alternative to a hatchback or estate, rather than a small city car or SUV. In its day, the 406 competed with popular mid-size saloons such as the Ford Mondeo and Vauxhall Vectra, offering a more relaxed, understated feel. mycarcheck.com has recorded 53 look-ups for this exact version, covering 10 distinct VINs—a useful snapshot, though not a huge sample. Checks show an average private-sale valuation of £400 and average recorded mileage of 127,000 miles. The average annual mileage is 3,000, and cars had around three previous keepers, so condition and service history matter greatly when assessing an individual example. The 2.0 HDi suits commuters and budget-minded families wanting comfortable longer-distance travel; air conditioning adds everyday appeal. Against newer rivals, age means check rust, upkeep and paperwork before buying carefully.