I'm thinking of trading my 1.2 16v in for a dci purely for the running costs. around town i'm only gettin 35 to the gallon where as my girlfriends mum's dci 80 is getting 56.4 now to me thats a big saving, also my grnadad has a fuel card so could get me cheap diesel. I've got a 55 plate clio extreme 4 with air con, mileage is around 31,000 miles what trade in price do you think i'll get and what dci am i looking at for that price.