American racing legend Mario Andretti visits Circuit of The Americas and takes a trip around the track with COTA Chairman and Co-Founder Bobby Epstein and Executive Vice President Bruce Knox.

// Photos and story here: theaustingrandprix.com/news/2012/6/9/racing-legend-mario-andretti-joins-cota-as-ambassador.html#.T9-evfV-s2c

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