Just seen this article. The new higher tax rate for cars over 225g of CO2 was supposed to apply to new cars only. It now turns out the government didn't tell the whole truth. It will also apply to cars up to 7 years old!!!
This means that soon you will almost have to give away something like a Discovery or any other 4x4 - even a diesel - the 2nd hand values will hit the floor. Even things like Mondeos with bigger engines will be effected.
There is a great search here to see how hard you will be hit.
"Tens of thousands of families will have to pay up to £245 extra a year under new road tax rules after a covert government decision to include cars up to seven years old."
"Paul Watters, head of roads policy at the AA, said: “The Government presented the changes as means of influencing people’s purchasing decisions, but it turns out that they are also penalising hard-pressed families who have been running the same car for many years."