🔑​ Spawning (breeding) costs remains constant no matter how many times Cars or Drivers are spawned—from the first to the seventh spawn. There are seven classes of cars in the game, from Rookie up to Legendary. The price to breed goes up as you go up in class, but keep in mind that Legendary (the highest class) earns double the amount a Rookie (the lowest class) earns per play-to-earn race. All Drivers earn the same per race.