150+ MPH

no, you dont know what your talking about, the front body panels of a sho create downforce

the rear spoiler of a sho … that sho specific one, creates downforce … it was SPECIFICLY enginieered to do so via windtunnel testing

now if the front of the car has say, 50 mpounds of downforce,
and the spoiler creates say, 50 mpounds of downforce,
BUT the roof, due to its shape, creates 50 pounds of LIFT…
then you have 50 pounds of EFFECTIVE downfoce remaining

now if you create turbulance over the roof, you kill the lift created by the roof

you know how planes have a distance they have to trail the next jet ahead of them ? this is because the front planes TURBULANCE will destroy the trailing planes lift

create turbulance with a cars sunroof and you can kill the lift on the roof

now in our previous example about the sho …

50lb down on the front
50 lb down on the REAR
ZERO pounds UP on the roof

total effective downforce created by the car … 100 pounds ’

there you go
i know more about the sho
i obviously know more about aerodynamics

thank you, please come again