The project was started as a fully detailed model, so finding the tires in the right size was the first task because I can't scratch build a rubber tire.  The front tires can be taken from one of those sports car kits, and the rear tires are the front tires of a 1/20 Tamiya F1 kit.  The wheels will be scratchbuilt by using polyester putty.

The body parts will be resin, and the master parts will be made of vacuum-formed plastic.  The under tray, winglets and other flat parts will be simply made by cutting a sheet of plastic.