At the end of February I bought a 57-reg (early 2008) C4 VTr+ diesel automatic. In the technical data for my car in to the handbook (it appears to be the electronic gearbox system because it definitely isn't the other auto mentioned), the fuel consumption should be around 48.7 urban, 74.3 extra urban and 62.8 mixed. I am well aware that this isn't set in stone and all hinges on the road conditions, journeys made, driving style etc. but I am very disappointed in what I've been getting. I went to Essex and back twice, approximately 500 miles round trip, and only got around 55 mpg. I would have expected considerably higher than this for a journey made almost entirely on motorways and dual carriageways. My mpg for the last couple of weeks has averaged out at 45. While I admit that quite a lot of that is just around locally, I have done some reasonable journeys on good roads. I previously had a 2001 Peugeot 406 which returned around 57 mpg on the Essex run, cost me £140 a year to tax, as opposed to £30 for the C4, and was 13 years old. As I've recently retired, I thought I'd get a slightly smaller, newer, car with lower running costs. Not taking into account what the C4 has cost me to buy, I'm very disappointed with the mpg as it really isn't much different to what I was getting from the Peugeot so I'm actually only saving £110 a year on the road tax. I was hoping to get much better mpg than I have been getting and am seriously considering changing the car again. What mpg do other people get? Nora