This weekend was all about Hendrick Motorsports and their 40th anniversary. They put NASCAR on notice at Martinsville. It wasn’t just about the win, it was the entire weekend for this team. Of course, William Byron won the Cook Out 400. It didn’t start there. Kyle Larson started things off by winning the pole. Then he led the first 80 laps of the race to win Stage 1. Of course, the 1-2-3 finish, with Byron, Larson, and Chase Elliott. Alex Bowman finished P8. If you want, throw in Rajah Caruth’s P7 finish from the Truck Series, and Hendrick Motorsports or Hendrick-sponsored drivers all finished…