hi mate where do you live, i can't believe you dont have a paint bodyshop supplier in your area we have loads in madchester, for every paint code there are usualy 3 or 4 different shades, sometimes age related, eg titan silver on a bmw 99 is not the same as 2002 colour, i would advise you take your car along and get them to match it properly, as matching fiat paint isn't as spot on as some manufactures like bmw i can paint a wing in no1 shade every time and bolt it on and eh! presto bang on, if in doubt fade out, as for the primer all these new colours require a certain coloured primer i use a tintable one, as the paint doesn't cover, the stuff i use mostly is a new one from kent, and is black, with a built in guide coat, top stuff and everthing goes over it apart from red, dont go to halfwits for anything Ant!