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Engine Performance

Engine, not car — the chassis is spec

Every IndyCar entrant runs the identical Dallara DW12/IR-18 chassis, aero kit and gearbox. The only performance variable between organizations is engine manufacturer — Honda or Chevrolet, just two suppliers — plus team-level setup and prep. So this isn’t a “car performance” ranking the way NASCAR’s is: it’s a straight qualifying-pace comparison between the two engines, closer to F1’s single-car honesty than NASCAR’s four-supplier situation.

Gaps are real seconds, not positions: IndyCar’s own results feed carries genuine best-lap times for qualifying (its knockout format’s “Combined Qualifying” classification already reflects each driver’s best lap from whichever round they reached), so “+0.187s” here is a measured gap to the session’s fastest lap, not an invented figure.

Qualifying data isn’t available yet — check back after the next session.

Where these numbers come from

Qualifying classifications from the last five points races, sourced from indycar.com’s own results API. Each entry’s best lap is expressed as a gap to that session’s fastest lap before averaging by manufacturer, so a difference in track speed between circuits doesn’t distort the comparison.