Through eight races on NBCSN, viewership is up 46 percent from the 2013 average viewership over eight races.
"INDYCAR is definitely on the upswing, whether it's ratings or putting buns in the seats," Dixon said.
"(This season) has been up and down with so many different drivers winning and even a rookie winning. It's strong for the sport and fun for the fans to see different cars at the front. The competition is the deepest it's ever been. I think it's exciting."