i have a 1/16 auldey race-win car. They are not proportional, but mine has 2 speeds. They are very good cars and can be easily modded. Check out
www.9turbo.com
or
www.carmoworld.com
they have lots of good info, i have a subaru body with stripped off stickers and already sanded i could sell u, i also have a beetle body for a smaller auldy race-tin version if thats what u need.