Michigan: Kevin Harvick becomes NASCAR’s “most dangerous” playoff driver; Bubba Wallace’s crushing second place; Blaney on bubble; Truex out?; “Swerve or Die‪”‬ NASCAR on NBC podcast

NASCAR on NBC analyst Kyle Petty on Kevin Harvick becoming the most dangerous driver in the Cup Series playoffs with his stunner at Michigan; Bubba Wallace’s heart-wrenching runner-up finish and whether he was too hard on himself; the raised stakes for Ryan Blaney and Martin Truex Jr. now battling for a final playoff spot; a crazy year for Kyle Busch; Ty Gibbs’ emergence and what it might portend for KB18; Denny Hamlin’s pit crew mistake in a season of errors for Joe Gibbs Racing; Kyle Petty’s new memoir, “Swerve or Die”; and his visit with the Avett Brothers.