Race cars evolved from race to race. The pictures of Porsche 908-2 I first looked at were earlier cars, which did look like the 908-3. They had slab body sides and the fender tops on the “shoulders” were flat, without the dip between the fenders of the later cars, as in the #36 car. I don’t know which versions campaigned in which Can-Am races, but my inclination is to be inclusive rather than exclusive, so I say they can run.
Russell