http://www.restorationhardware.com/r...ump&navCount=1
The instructions say that it is the Tomy Corporation and mentions AFX Aurora Factory Experiments. It also mentions a toll free number for parts and a catalog of high performance parts

. 877-866-9239.
The track fits on a 4' X 8' piece of plywood (in my basement). I was going to place the track at a ~4' height so I could sit and play. After a few incidents of the cars flying off due to driver error, I decided the floor was a safer place for flying cars.
Each car is remarkable similar in performance (my old set wasn't so). And 64 feet of track requires careful concentration. Of course, after I practice, I plan to invite some guys over for beer and slot car racing.
I may even order a couple of GT40s:
http://www.hoslotcarracing.com/