Bizarrely enough, this game has two endings: one when you clear every race, a "Short Ending", and one when you finish the WSK, which opens after you clear every race. It's also strange how there's nothing special about the WSK: they're the only races in the game to care about your car's drivetrain, yes (very odd for this genre of game admittedly), but other than that they're literally just normal 3 lap races on the same circuits you played for the rest of the game, against opponent cars you likely played against many times throughout the game too. Very strange, honestly...
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