This week on an all-new episode of "Authenticated," hosts Matt Kentfield, Alex Pohlman, and Karleen Marginean discuss the Playoff excitement from all three NASCAR national series races at Homestead-Miami Speedway. We discuss who we think will battle for the NASCAR Cup Series and NASCAR Xfinity Series championship after this weekend’s races at Martinsville. Plus, for all the NASCAR Authentics fans and collectors, we give a Wave 4 update and a preview of some of the cars that will be in this highly anticipated wave of 1:64-scale die-cast. We also some fun giveaways that we’ll have at the track this weekend at Martinsville, plus some more cool giveaways to come on our social media channels Learn more about your ad choices. Visit megaphone.fm/adchoices