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IndyCar: Revised, more powerful engines on tap in 2014 | RACER
Indycar engine powerful Indycar engine manufacturer talks for 2021 continuing Indycar engine lotus current proffit anne allows modifications officially
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INDYCAR Officially Allows Lotus Engine Modifications
IndyCar: Revised, more powerful engines on tap in 2014 | RACER
IndyCar to introduce more powerful engine in 2021
Honda and Chevy commit to 2023 IndyCar hybrids | Professional
IndyCar engine manufacturer talks for 2021 continuing | RACER