Between races, players can spend the money they have earned on more advanced equipment for their vehicle (engines, tires, shocks, and shielding) or on increasing their capacity for the frontal weapon (energy blasts or missiles), rear weapon (slip sauce or mines), and turbo boost (jump jets or nitro boosts), each of which can max out at seven. Despite their limited capacity, every vehicle will have its weapon and boost charges replenished at the completion of each lap in a race. Racers can also buy more advanced vehicle models; however, all equipment and weapons upgrades are lost when a new vehicle is purchased.