S1

In 2021, SCX continued with the previous year's trend and marketed two new versions of the Audi S1 World Rally Cross. This model, reference U10389S300, comes with rear-wheel drive, front and rear LED lights, a guide with an automatic return system with double braid and a single driver. In blue and white tones and #15, it reproduces the livery of the car with which Gergely Márton competed in the 2020 Rally Cross of Catalunya in the Super1600 category. Although the SCX model is an Audi S1 WRX, Gergely Márton actually raced with an Audi A1 Super1600.

The Super1600 category was a feeder division of the European Rallycross Championship, aimed at young drivers and privateer teams. The vehicles used naturally aspirated engines of up to 1,600 cc, front-wheel drive and an output of approximately 220–240 bhp. Although far less powerful than the Supercar class at the top level, they stood out for their low weight, mechanical parity and closely fought races. The model with reference U10389S300 reproduces the livery used by Gergely Márton in the 2020 FIA European Rallycross Super1600 Championship, where he competed with race number 15 and finished as runner-up. Although the livery and race number correspond to the real vehicle, SCX used the body of the Audi S1 WRX from the Supercar category instead of the Audi A1 Super1600 driven by Márton. That year, due to the COVID pandemic, only the Circuit de Catalunya round was held in the Super1600 class.