Viva Las Vegas! The NASCAR Playoffs roll into Sin City as both the Xfinity and Cup Series head west for the second time this season! With just four races remaining, Vegas marks the first race of the Round of 8 — and the first chance for drivers to lock themselves into the Championship 4 in Phoenix.

Storylines to watch: Xfinity Series: It's a Chevy-heavy playoff field — can JR Motorsports dominate with Allgaier and Zilisch leading the charge, or will Brandon Jones, the lone Toyota contender, steal the spotlight? Cup Series: The Round of 8 is set — can the Joe Gibbs Racing trio of Bell, Hamlin, and Briscoe keep their strong playoff runs alive, or will Hendrick Motorsports punch another ticket to Phoenix?

Plus: Yellow Flag / Green Flag Exclusive interview with Truck Series driver Bayley Currey Discussions with Dave Predictions for Talladega Paint Scheme of the Week Fast Davey's Bets …and so much more on this high-stakes episode of Splash of Gas with Dave Weichert!