I love racing, and I pretty much just build racing vehicles.
NASCAR is between a rock and hard place. The concept of "stock" cars went out in the mid-60s when they went to running Ford Chassis under every car on the track. Safety and other concerns made NASCAR want to move in the direction of a "common template" car, a car that Dale Earnhardt Sr. fought against very much. NASCAR used his death to get the idea through, so now no makers have an aerodynamic advantage.
Quick question, Can I buy a Toyota Camry with a V8? No, I can not. To be fair though most of the things we see running as stock cars are as far from the street versions as you can possibly get.
The single lug wheel is also seen as a safety measure. Other racing series have been using them for 50 or more years. You know the insane penalties for missed lug nuts? Those will be going away.
But there is the crux of the situation, how does it change the racing? Does it make it better? It depends. We are not seeing single driver dominating like they did in the past. This season so far, 9 points paying races, 8 different winners, with the three makers each taking 3 wins. That's pretty good, and a lot more entertaining. How about the races themselves? They are doing different things now, Bristol in the dirt was a good race. Running the Road Course at Daytona was fun, and adding more variety to the schedule.
I really like the direction that NASCAR has been moving since they got rid of Brian France who was destroying the series single handedly.