I assume one, when I met the guy the university part of the build was done. He was in process of moving the car to his basement and was re-building and making changes. Sounds like he had crudely got it driving at that point.

He bought a 10' sliding glass door from me so he could get it back out of the basement when finished.

It's an interesting project, but I don't feel that it proves wood as a practical material for a car. I think that he and everyone else knows that it would be faster, easier, and cheaper to use other materials.