We were asking a maindealer today how much to change our petrol car to a diesel because it was a difference 1500 euro in January 2008. However he said in the last two weeks the price of diesel cars has gone up, instead of paying about 4,500 to change to diesel it would be 8,500 for a 2009 model approx. This was a skoda dealer, he said diesels would become more expensive and petrol cars cheaper to compete with the lower road tax/CO2 emissions, petrol cars are harder to sell. How much mileage do you need to do to make this pay? Is this true for all dealers? Is it the same all over Europe?