Yup those are fiberglass bodies. There is an outfit in Salt Lake city who reproduces them also. Kirkham Motorsports they are aluminum. The bodies come from Poland. It's an interesting story of how they came to be. You can get them unpainted and the raw aluminum is flawless. I've seen one. You can not see a single seam. Those Polok's got it figured out. They get their experience from making jet fighters for Russia.