COmputoman,
Not a billionair. Just 4 years of work on the S13. Got over 25K in parts. Specs on the S13 go on forever. Built KA 401 rwh @ 12 psi on pump gas. KAAZ dif, K-Sport suspension, K-Sport big brakes, AutoPower cage, F1 CF seats, etc etc etc......
You should see my friend Koos Supra. Over 160K invested.