We've had SWMBO's new car for a few days now and with the recent rain whatever the dealer put on the plastics has come off to reveal a healthy amount of polish residue on them.So my questions is, what is the best stuff to get this off with?? Also I normally use AG bumper care on the GTI to keep the plastic looking good but I find it a bit messy and gunky and was wondering what else I could use as an alternative??