I can’t understand why any championship would ask their teams to go down the route of the aero development? Yes, there is of course the horrific costs involved with model building / wind tunnel testing although I guess the fact you have to sell the kits for a set price will take care of that. My real concern is why would you modulate a part of the package that so directly affects overtaking? Can’t get my head around that. The issue you will have is, just like in F1, everything will be driven by aero and you can’t back out a few years later because the big teams will invest in more and more kit and they can’t justify not using it.
What I do like about the Indycar is that it is a purer racing car than a modern day F1 car, i.e. it has no DRS solution.