So I've got a 2014 challenger that's silver. I've only ever washed and waxed the exterior. There are no swirl marks that I can see. I was wondering if I should just continue to wash and wax, or if I would be better off washing, using the Iron X for decontamination, and following it up with a paint coating? I don't want to damage the paint on the car since it's basically brand new. The car stays under a cover most of the time, so weather exposure is limited.