Those pics are fine and all. Now we have raised left rail midgets and even staggered frames. Kurtis didn't 70 years ago.

I might have come off Harsh but IMHO you'd have to create a class of its own just for what is being proposed. You can take a center line fixed axle street car and do it. It's just not practical for a modern Oval track only car. I've even seen some Karts that had roll cages that could do it but Midgets, I wouldn't say its impossible but a major expense just to make it happen. You also have the matter of no LF brake and braking is a major part of road courses. sprints and midgets use em more to just set the car than actual severe braking to be used every second or two.