Cool video on the tech inside the new Corvette C8 Z06.
23:55 is interesting as they talk about the underbody aero. They talk about the 'stall gurneys' (those plastic deflectors in front of the front tires) and how they are there for drag reduction (aka fuel economy). For the high downforce configuration, the stall gurneys are removed for more front downforce. It needs to be balanced by additional rear downforce as well. This is what Porsche practices too.
I hope this puts to rest once and for all what the front corner felt pieces on our M3s actually do, and why getting rid of them is not a bad thing.