For the last few shots I've taken of the car I've used Photoshop
Black trim - back to black but if very bad ie grey use a heat gun
Scratches - megs scratch x
Don't use a heat gun! very bad idea seen many melted panels from this method, just use a back to black type product. apply each time when you wash your car and after about 5 applications it should stay black for at least 6 months.. i found the cheep stuff from motorworld works fine.. :rasp:
I think ill try the heat gun, the trim on my back bumper has gone grey and nothing works to get it black again. Either that or a new one.
Sum awsum advise in ere 2day.