The cars are just under $20K to buy used. But you can run with an established team and pay per weekend and use their car, you pay for damage. That is what I did. This is like $2,500 for 3 day weekend plus entry fees. They do all work, tire changes, etc. You just show up and drive.
Tube frame, 1600 lb including driver. Handles like a real race car. 135mph top speed. No windscreen, very low to the ground.
