Big Machine Music City Grand Prix preview part 2 – a lot of random notes

Here are a few more notes before the track activity at the Big Machine Music City Grand Prix gets underway. Sustainable boots After a successful test run in May’s Ruoff Mortgage Pit Stop Challenge, the Alternate Firestone Firehawk Racing Tire, with the green (instead of red) sidewalls constructed with rubber derived from guayule, will make…

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