One piece. Requires connecting piece 61512 or 61530.

Turbo speed taking you to victory!
With the Carrera GO!!! With the speed controller you can let your slot cars race around the race track in no time at all. In addition to the normal start button, this model has a turbo button for even more power on the race track. Pulling off a loop is much easier with that extra burst of speed. You can use the speed controller for all Carrera GO!!! race tracks. Thanks to its practical design with finger grooves, it fits well in the hand and is the ideal tool for fast-paced races.