VIDEO: Firestone’s Guayule IndyCar Tires with Cara Krstolic
Cara Krstolic, Firestone's director of race tire development and production, takes RACER inside the company's new alternate NTT IndyCar Series tire that makes use of a new and sustainable source of rubber in its green-banded sidewalls.
Marshall Pruett
The 2026 season marks Marshall Pruett's 40th year working in the sport. In his role today for RACER, Pruett covers open-wheel and sports car racing as a writer, reporter, photographer, and filmmaker. In his previous career, he served as a mechanic, engineer, and team manager in a variety of series, including IndyCar, IMSA, and World Challenge.
Read Marshall Pruett's articles
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