F1 in Schools is an international STEM (science, technology, engineering, mathematics) competition for secondary school students (aged 11–19), in which groups of 3–6 students have to design and manufacture a miniature car out of the official F1 Model Block using CAD/CAM design tools. The cars are powered by CO₂ cartridges and are attached to a track by a nylon wire. They are timed from the moment they are launched to when they pass the finish line by a computer.