Here are the changes that would make it more interesting to me.
Run the new Mustang, Camaro and Challenger with stock bodies, Toyota can buy the Firebird body style and produce a production car. Use STOCK BLOCK ENGINES, transmission housings and rear ends and Brakes off of a production US made Car or Truck. At least 50% of each car has to have production based parts. Cut the spoilers down to 2†max. The good drivers will go fast and the others will have to learn. Have the top 30 cars get in the race by qualifying and have the rest race their way in with a 30 lap race! No more points getting you in the race. Where NASCAR is going now I have really quit watching or caring after being a fan for over 30 years.