I had camaro cookie cutters made for my 2011 summer bbq. They aren't the cheapest, but bring great reactions. The problem is that you need to experiment with the dough (my cookie cutters are 9" in length, and are the profile of the car). The shape comes out alright, but the details will depend on how thick the dough is, and what ingredients you use. I'll post some pictures later today of the cutters and the cookies they make.
EDIT: Found a picture Colleen posted from 2011.
