They're built by the same team that builds the road car engines and are 100 % stock internally. (automobilemag.com)
For an additional cost, the buyer can also purchase 70 extra acres of land, perfect for building a road course, according to the listing. (fordauthority.com)
Help build roads in different shapes, and then discuss the shapes of the roads and colors of the cars as your child plays. (powerfulmothering.com)