Do you want to get even more action on your race track? With the Upgrade Kit from GO!!! on your GO!!!! PLUS race track, this is now possible! Experience exciting challenges like pit stop games, multiple racing modes or the 1-player challenge. Now you can also control your slot cars with the 2.4 GHz controllers and be anywhere on the track where the action’s heating up. In addition, different sound effects bring even more fun to your children's room. With the GO!!!! PLUS App you can wake up your mechanics in different games or wipe flies from the visor so that you can then carry on. The Upgrade Kit is a cool way to take your Carrera race track to the next level!