Asked my buddy Kevin who always impresses me with his recollections of stuff like this. He says:
My Buddy Kevin wrote:
Yep - they're made by Tamiya and I think you can still get them.
Here you go. I think they are harder to come by in the US but pretty popular in EU and Japan.http://www.tamiyausa.com/product/catego ... main-id=40
Click on Jr. Racing Circuits to see the tracks.