
The main feature of the game is the "Grudges and Alliances" feature, which is based on the player's driving style and attitude. If the player drives dirty and bumps into other drivers, even if it was an unintentional bump, that driver becomes a "Rival", and will bump into the player if they happen to encounter each other later in the race. However, if the player drafts the opponent, that rival's level in grudge severity drops. If the player drafts a neutral driver long enough, that driver will become an "Ally", and at times will let the player pass. However, if the player bumps into an ally, their alliance will slowly drop. The maximum amount of severity for both grudges and alliances is -100 and +100, respectively. The player can see his/her four highest grudges and alliances at the end of the race. In Season and Career modes, the grudges and alliances the player makes carry over to future races.
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