The CITROEN C6 (2005-12) 4DR SALOON 2.2 HDI DPF 173 EXCLUSIVE is a distinctive French executive saloon, rather than a family hatchback or SUV. It was a rare, comfort-led alternative to familiar BMW 5 Series, Mercedes E-Class and Audi A6 models, appealing to buyers who wanted something less conventional and more individual. The 2.2-litre diesel is suited to relaxed motorway journeys and regular longer-distance travel, while the roomy cabin and high-spec Exclusive trim make it appealing to professionals, couples or families seeking a refined used cruiser. Its unusual styling, distinctive road presence and reputation for a smooth, supple ride set the C6 apart; it offers a more characterful experience than many mainstream executive rivals. mycarcheck.com shows 9 look-ups across 4 VINs, a small sample. Average private-sale value was £3,300; most recent recorded mileage averaged 139,000, with about 2.9 previous keepers. Annual mileage averaged 8,000; check condition and records before buying.