Unless you run your 1:18 cars on a 1:10 track, I think you'll find the Venom GPV-1 much too big. In fact, the smallest track we race our 1:5-scale bikes on is a 1:8-scale car track, but we usually run with the same program the 1:5-scale cars do. Bikes like to have a lot of room, as they don't turn like cars do. I ran the GPV-1 on a 1:10-touring car track in Camarillo, CA yesterday, and it was perfect. But once we start racing them, I expect we'll be needing a lot of turn marshalls.