Review: Citroen C6 (2005 – 2012)

Looking for a Citroen C6 (2005 - 2012)?
Register your interest for later or request to be contacted by a dealer to talk through your options now.


It looks and drives like a big Citroen should - idiomatic, smooth and very hushed. Plenty of high-tech gadgets. Excellent crash safety ratings.

German rivals hold their value better.

Citroen C6 (2005 – 2012): At A Glance

Until now, if you wanted a prestigious £30,000 - £40,000 saloon car you could choose between an Audi, a BMW or a Mercedes.

Or a Jaguar or a Lexus if you didn't want to give your money to the Germans.

Now Citroen offers the sort of genuine alternative that only Citroen ever could. A big car in the tradition of the DS, the SM, the CX, and the XM, so authentically Citroen that if they weren't into numbers (and Renault hadn't nicked the name) they could have called it the ‘Authentique'.

Citroen doesn't expect to sell many C6s. Apart from dealer demonstrators, cars are only available to factory order. So discounts are only likely on ex-demos and rare cancelled orders. Citroen sees the car as the choice of an advertising agency creative director rather than an account director or financial director. People who think as individuals, don't follow convention and appreciate that with the C6 Citroen offers them something genuinely different.

Looking for a Citroen C6 (2005 - 2012)?
Register your interest for later or request to be contacted by a dealer to talk through your options now.

What does a Citroen C6 (2005 – 2012) cost?

Citroen C6 (2005 – 2012): What's It Like Inside?

Length 4908 mm
Width 1860 mm
Height 1464 mm
Wheelbase 2900 mm

Full specifications

You'd expect a few Citroen gimmicks, and the C6 has them. Directional Xenon headlights that see their way round corners. Optional electric semi-reclining rear seats. Lane departure warning system. Automatic hazard warning lights if you brake hard. Self raising and lowering Hydractive suspension. Laminated side windows. Voice control. Head up speed display. Huge opening door pockets. Automatic wipers and headlamps. Cruise control with speed limiter. Electric parking brake. Active anti whiplash front head restraints.

Child seats that fit a Citroen C6 (2005 – 2012)

Our unique Car Seat Chooser shows you which child car seats will fit this car and which seat positions that they will fit, so that you don't have to check every car seat manufacturer's website for compatibility.

Which car seat will suit you?

What's the Citroen C6 (2005 – 2012) like to drive?

It's long and low with Citroen's unique ‘Hydractive' suspension and offers a completely different driving experience from anything with ‘fourspring coil technique'. (There's a rather rude joke about that.)

It's actually more like a modern DS or an SM than a CX or an XM. You don't turn into a corner as you would in a BMW. Instead you turn the wheel and wait a fraction of a second while the car responds. It then tackles the corner reasonably competently with decent steering ‘feel' and grip, but isn't too happy about a second change of direction. Attempting to drive it as you imagine a rally driver would isn't really on and will probably make your passengers sick. The car is actually much better at ‘wafting', when it isolates both you and your passengers from the cruelly potholed outside world, and the complete absence of wind noise makes it especially good on motorways.

Like the Peugeot 407 Coupe that shares the same floorpan, engines and transmissions, there simply isn't any point in bothering with the slower, thirstier petrol version so I didn't. (I had driven the 407 3.0iV6 coupe, so I knew for sure.)

The car has the best pedestrian protection of any car in the world. Run someone over and the bonnet pops up to collect them and cushion the blow. As well as 4 NCAP stars for pedestrian protection it also scored 5 for occupant protection and 4 for child protection.

Engine MPG 0-62 CO2
2.2 HDi 43 mpg 9.5 s 199 g/km
3.0 HDi V6 Automatic 39 mpg 8.9 s 190 g/km

Real MPG average for a Citroen C6 (2005 – 2012)

Real MPG was created following thousands of readers telling us that their cars could not match the official figures.

Real MPG gives real world data from drivers like you to show how much fuel a vehicle really uses.

Average performance


Real MPG

27–44 mpg

MPGs submitted


Diesel or petrol? If you're unsure whether to go for a petrol or diesel (or even an electric model if it's available), then you need our Petrol or Diesel? calculator. It does the maths on petrols, diesels and electric cars to show which is best suited to you.

What have we been asked about the Citroen C6 (2005 – 2012)?

Every day we're asked hundreds of questions from car buyers and owners through Ask Honest John. Our team of experts, including the nation's favourite motoring agony uncle - Honest John himself - answer queries and conudrums ranging from what car to buy to how to care for it as an owner. If you could do with a spot of friendly advice before buying you're next car, get in touch and we'll do what we can to help.

Ask HJ

What are the best five cars for cabin quietness and insulation from wind and road noise at speed?

What are the best five cars for cabin quietness and insulation from wind and road noise at speed?
The most surprising I have ever driven was the Peugeot 407 Coupe. Astonishingly quiet even at high speed. Otherwise, a Mercedes-Benz S500e, a Lexus LS600h (new Lexus hybrid next week), new BMW 7-Series, Citroen C6.
Answered by Honest John
More Questions

What do owners think?

Our view gives your our opinion, based on driving hundreds of cars every year, but you can't beat the views of someone who lives with a car day-in, day out.

  • 5 star 50%
  • 4 star 50%
  • 3 star
  • 2 star
  • 1 star

See all owners' reviews