Firestone Adds New Sustainably-Sourced Raw Materials to Race Tires for 108th Running of the Indianapolis 500 Firestone Firehawk Indy 500 race tires for this year’s event include two ISCC PLUS-certified monomers produced from waste residue of palm oil processing.1 All Firestone Firehawk race tires are produced at Bridgestone’s ISCC PLUS certified Advanced Tire Production Center (ATPC).1…