What's wrong with NASCAR

I was reading this interview with five of the top NASCAR drivers from a recent Sports Illustrated and Jimmie Johnson said this: "It's really difficult to pass, and when you get a chance, you practically have to drive over your head to pull it off" and Dale Earnhard Jr. said "You can be two tenths of a second faster than somebody [on each lap] and run them down and then get stuck behind them at about five car lengths." I've seen this over and over this year. A car will pull up on the back bumper of another car that is obviously slower and due to aerodynamics the faster car cannot get around the slower car. If they could find a way to make the cars less dependent on aerodynamics you would have better racing. My solution? Mandate that teams can't run a body style more recent than 1979. Now that would be racing. I want to see some square grills out there.