Those never went any farther than the drawings there. However, they later inspired tge Razor body that sells today. There were two original designs: F1 style and Grand Prix. I'm unsure if any GPs were sold, but the first 20+ SLRs were F1s. Theres about 5-10 Razors out there. I have the first driving Razor. Take a look at my thread; "ViperJustin SL-Razor Arrived!" for more pics of the Razor.
Edit: If you have any other questions regarding the SLRazor, don't be afraid to ask.