Every year the Cub Scouts in my town do a annual car race, called The Pinewood Derby. The boys race cars they have built at home.They also have races for Cub Scout’s siblings. I have been to a few races myself ,and there is so much creativity in those cars! Here is a Scouting website with great Pinewood Derby car photos.
At the end of racing they announce who will be going on tho the regionals. and if you win the regionals, you go to city, then state. One of my friends went to regionals last year. I heard It was awesome. Good luck to all the future racers!