This is a very large and fast 4 lane circuit, with a long straight (11 long), and a quadruple intersection. This has been designed for a large open space, such as a two car garage. This is a great track for racing with a group of friends, and is very exciting with the 4 way intersection. As with my other similar tracks, I have learned to place the intersections near curves, to reduce the speed at which the cars are likely to hit. trust me, you don;t want any if the modern hartd-plastic bodied cars colliding at full speed on the main straight. The older vintage cars, particular the GT's from the 70's such as the Muiras, P4's, Mirages, etc are far more durable and can take that sort of punishment, to a point.