If 2 different cars are in the same insurance group, would the insurance for them be the same, provided all other details are the same? What if the two different cars have different engines, but are still in the same group? I know age of car makes a difference, but how much? Is it better (with regard to money) to buy a slightly newer car as the insurance would be cheaper, or is it better to save money on the car & pay that little extra on insurance?