ST220s are excellent cars and, given the pedigree of prices for fast Fords, a car you probably do want to hang on to. However, its value won't rise overnight. It's predecessor, the ST24 is starting to see values rising - but if you plan to turn this ST220 into your pension pot then you'll need a fair wind, patience and deep pockets. This car is at the bottom of its value cycle where it's probably never going to be worth less - but alongside that is the fact that it's going to need A LOT of work to see it through. You could look at something like a Porsche 944 or a Peugeot 205 GTI, but whatever you choose (especially at those prices), you'll need to set aside a budget for maintenance.