2Many,
Here is the Johnspeed web site:
http://www.johnspeedcobra.co.za/pg1.htm
I have a friend here in Denver, Ray Blitstein, who has owned two Johnspeeds and has a couple more due to arrive in late July. The Johnspeed does use BMW suspension and they are not associated with Backdraft, as I understand. Please email me and I can get you more information.
Keith Hall