Nobody knows IndyCar like Leigh Diffey from NBC Sports -- he was the man who interviewed Fernando Alonso after his announced return to IndyCar. Will he race the Grand Prix? What about Jimmie Johnson? Great insight from Leigh

<p>Nobody knows IndyCar like Leigh Diffey from NBC Sports -- he was the man who interviewed Fernando Alonso after his announced return to IndyCar. Will he race the Grand Prix? What about Jimmie Johnson? Great insight from Leigh</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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