okay I see it with some other vx's where the vinyl bumper that covers the bottom half of the car over time becomes white and faded and looks terrible, then there are some vx's that have their bumpers nice and grey and like new. I recently purchased a mint condition vx and I want to know whats the best way to keep my bumpers looking new. Im afraid if I take it to the local hand car wash that over time they may ruin it, do I need special soap or a special wax for that part of the car?