[masraum]

Yes, they "build" the body on the stripped chassis out of foam and then make the molds from the foam mock up. Once they have the shape right they apply fiberglass to the outside. Once the fiberglass is set they can then remove the fiberglass and the foam. Then the fiberglass can be used to make fiberglass body panels that will actually go on the car.

Anzures. Maybe I don't understand your question. Ferrari has an F40 and a different car made years later is an F50. I believe the F40 is a tube frame car and the F50 was a monococque(sp) car. So they made an F50 not an F40.