2025 Standings

Engine manufacturer championship points will be awarded to the top two finishing full-season entrants for each manufacturer in a race using the same points structure as used for entrant and driver points. Driver eligibility for a given race is also determined based on quantity of engines used during a given season, as exceeding this threshold will deem the entry ineligible for engine manufacturer championship points. An additional five points will be awarded to the race-winning manufacturer while one point is awarded to the engine manufacturer that qualifies in the pole position at all races except the Indianapolis 500. Two points will be awarded to the engine manufacturer that wins the pole position at the Indianapolis 500 and one point will be awarded the engine manufacturer that is the fastest on the first day of Indianapolis 500 qualifying.