3S stands for Speed, Stop, and Steering. This combines elements of autocross and speed-stop into its own segment testing the limits of car and driver. A balance of power, suspension setup, brakes, along with driver skill and focus is the key to the fastest time. This unique segment is a ton of fun for both participants and spectators alike. The 3S Challenge is one of the events in the Grand Champion Competition and is open to all registered Autocross competitors.
The format is a side-by-side, low-speed, down-and-back course layout that will feature a 180-degree turnaround, slalom, and stop box. Each run will be a total of left-side course time combined with right-side course time. A complete run requires clean execution of both the left and right sides.