I've got this theory that Jimmie Johnson wants to run the Indy500 - we ran in by NBC's IndyCar announcer Leigh Diffey - his answer might surprise you 

<p>I've got this theory that Jimmie Johnson wants to run the Indy500 - we ran in by NBC's IndyCar announcer Leigh Diffey - his answer might surprise you&nbsp;</p>

You know that guy who loves to talk with you about cars and racing? That's Big Jim O'Brien - and you're always welcome to stop by his garage as he hats with some of the biggest names in racing:  Mario Andretti, Alexander Rossi, Roger Penske, Bob Seger, Kurt Busch and many more...

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