Where is the pickup truck in Dongguan going? The body is painted.

Go to the garage to spray, or 4s shop can do it.

Carve the words you want to spray (hollow) on cardboard, and then spray them with bottled paint. You'd better find an advertising shop to carve the words on the cardboard. It won't cost much to make a version, and then put the cardboard engraved with hollow characters in the position where you want to spray them, and spray them evenly with bottled pigment according to the hollow characters. Remember not to spray too much, which will easily cause the paint flow of the sprayed words.