Another amazing race for IndyCar over the weekend at St. Louis -- and our buddy Leigh Diffey checks in to preview the remaining two races, plus we discuss the impact of McLaren coming into the sport (and of course Fernando Alonso). 

<p>Another amazing race for IndyCar over the weekend at St. Louis -- and our buddy Leigh Diffey checks in to preview the remaining two races, plus we discuss the impact of McLaren coming into the sport (and of course Fernando Alonso).&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...

Big Jim's Garage podcast with Jim O'Brien

NBC's Leigh Diffey checks in to talk IndyCar

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