Are you talking about a full size car or a scale model? Both are out there.
http://www.greenwoodcorvettes.com/Toys.html
And if you go to their main page, you will see the real car.
EBay has a few. If you also search Ecklers, on EBay, you will find them. I have also found them in hobby stores. I have both the plastic scale model and the slot cars. I have also found a similar version of it in an radio controlled car.
