You can upgrade your car in your performance shop.You can upgrade 6 elements: engine, gearbox, brakes, tires, weight and aerodynamics. Each element can be upgraded using a different workshop. To launch an amelioration, you need to put your car in the adequate workshop, drag the element you want to upgrade and drop it to your car. New upgrades will become available with game updates, so stay tuned!
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Gear.Club Game GUIDE