I'd like to ask the same thing. My car is old, lie 1992 old, so the white paint is quite a bit different than what would come out of a can of white spray paint.
Someone in a dark red car politely hit my back bumper and drove off, leaving a big red mark that I cannot seem to get out. The bumper is plastic, so I don't want to try to rub it out and crack the rest of the old paint. Ideas?
A bit of patience with a good cutting compound usually works . I have seen them in the b/shop using thinners once in a blue moon but they know what they are doing and if you dont you will knacker paintwork . I would not advise it .
Trust me, I take paint transfers off of cars six days a week, ten hours a day. Light duty lacquer thinner will work perfectly, or an adhesive remover. Don't be too aggressive. I've never damaged the exterior of a car with lacquer thinner and have used it inside and out.