6-cylinders are better than the 4-cylinder idea that was in effect. I say go with displacement and horsepower and let teams innovate. Were it up to me, I'd also cut way down on aero effects. As for Valencia; it's a horrible race and I don't see how it could be improved. My dream is to see F1 in Surfer's Paradise. BTW, one of my favorite races for open wheel was Cleveland Airport. F1 is too arrogant to race without their 5-star hotel garages, but it would be spectacular. (How about an unlimited racing series? As long as the car fits in a box of a certain size, has at least four wheels, has no more than a specific engine displacement (or measured horsepower or some such limiting factor on engine/motor), produces no more than a set amount of downforce and has some limits on the engine computer, it can race. Want to try diesel? Go for it. Electric. Ethanol. Close the wheels up? Why not?)