I know of an older guy who was selling his VR4. I'll try to get into contact with him. As for performance wise, I believe they ran mid to high 13's stock. They can be made to go fast but it's not cheap. I also believe they were pretty heavy, around 3700-4000lbs or so. Do alot of research before you get one as they can sometimes be problematic if not taken care of properly.

This info might help you out:

http://www.3si.org/forum/
http://www.3si.org/wiki/index.php/Category:FAQ

Let me know if you need any more help.

TJ