Okay, I will set it up again for next year.
They are changing the cars again, so who knows, I think we get:
removal of the splitter(good for looks)
fuel injection(fake technology PR, think it will be what is in my 1988 K5/TBI)
alcohol fuels(fake green initiative PR for Sonoco sponsorship, they will get worse fuel mileage)
and a change for the chase(again PR, it won't matter JJ wins again unless having Jr in his shop is a big distraction, I think this maybe enough though to stop JJ).
Summary: new aerodynamic issues, engine reliability, and fuel mileage. Same things that made this year so random, with the wing change, the new ford motor, and Toyota so poor on mileage.