Overview: The champions' challenge is to take an ordinary car and convert it into a radio-controlled fighting machine. In the contest, points are scored for hitting targets on the opposing machine: 10 for a sideswipe, 20 for a rear-ender and 30 for hammering the roof. If a machine strays outside the ring, it gives away 50 points to the other side. The team with the highest total score after three rounds wins.