The second is spec. This is a class I have been working on for the last few years and am about to have a finished chassis. Legends would be the closest to my model but when done, mine will be about half the cost and look like, drive, and perform as a fullsize car. Actually, about the size of a compact car but here's where mine addresses the subject of parity.
In today's world we have race cars that are not only identical but are also maxed out as far as chassis and engineering. I'm sure you've heard of race car drivers who exit a car after a race win and exclaim the car was so right anyone could have driven it to victory.
Well, when you have all the best science has to offer then the driver was more right than wrong. This type of race car produces the dreaded follow the leader we see in traveling Late Model series. Now suppose all the cars were identical and yet the geometry was not able to be maxed out. No matter what you adjusted, the car could never be perfect. Now you have a scenario where true driver talent rises to the occasion and no one has a right to complain.
A track owner could produce a similar result by having different radius turns at either end where the cars would have to be set up on more of a compromise and driver talent would again rise to the top. This is the class where everyday guys come together and race clean. They have learned how to drive and have gotten past trashing others cars for an extra $20 at the payout window. They can share parts and panels as they are all the same but rules allow cosmetic changes to keep each unique. They will have a Reverse gear.
Third would have to be Late Model. This class should be seen as the last stepping stone to pro racing in the way minor league baseball is to the major league. All aspects of the car should be maxed out to recognize the professional abilities of the driver and team. I don't have much more to add to this class as I have no desire to race in it, so I'll leave it at that.
I believe there is a market for a class like spec, where folks go racing on the weekends the way we play softball, tennis, or golf. It's getting the fix without having to have a surface plate and a TIG welder. (I have both.) It's a class where all the approved parts are available in one catalog for all to see but much more affordable than Legends and not nearly as cramped. When someone sees your car he will know you race and not drive around in parades.
I have been trying for some 15 years to get everyone on the "perfect" setup and 90 percent of the racers still don't listen. You will never see all or most of the field with the same setup, even with supposedly upper class circle-track racing such as the USAR racing series. Watch one of those races and tell me they are all "perfect," far from it.
The Bomber class is a typical example of this. Never will you see all or most of those guys tuning their moment centers, or Ackermann, or dynamic balance or rear steer because only 5 percent of them will and they will win all of the races, and do. And that is the way it should be, being rewarded for your efforts.
I do like the idea of a series where more racers could get into it without needing a second mortgage on their home. There are many different levels of interest like you say and not everyone will desire to race Super Late Models. That is why karting is so popular.
What we propose is a return to "stock" car racing. Using a new stock body and suspension and running a series where you need to be innovative and work with a system that is not perfect. We are trying to get the manufacturers to provide "bodies in white" and other parts so that racers can truly run showroom stock cars at affordable prices. It will be a return to the old days of racing with modern equipment. We'll see what happens.