This is just a concept at the moment, but VolkerWessels fully intends to test it and make sure that it holds up in the real world. That's not idle talk, either. The Dutch city of Rotterdam is interested in trying out these plastic surfaces in its "street lab," and the company hopes to have an honest-to-goodness route in operation within three years. If the idea still sounds outlandish, look at it this way: it's likely the closest you'll ever get to driving a Hot Wheels track in real life.