A couple of months ago a bus whacked the side of my Astra. It was repaired, but just one problem. The repaired areas have nice new shiney paintwork and the original areas are a sort of dull pink. The difference in colour is quite noticeable. The original area can be polished and is shiney - but the colour is still faded. Any tips on how to get back to the origninal colour? T-cut or some such similar? Ta