What kind of paint is typically used for painting scale models of cars?

Testors Acrylic Paint is what most hobby shops sell for painting scale models. It can be difficult to find, especially if you don't have a hobby shop in your area, so you would probably be better off buying it on-line.

I usually spray paint my models, because using a brush leaves brush lines; spray paint mimics a factory paint job and gives a more realistic look to the finished model. I usually use a paint formulated for plastic surfaces. Automotive paint is for metal, but I have used on some plastic models and it worked fine.