Corrected entry: In the scenes where cars are flipping through the air, the roof flaps never deploy. Roof flaps are the two flaps on the top of the car that always deploy during wrecks, particularly if there is a chance the car could go airborne to keep the car on the ground. They are required safety devices in NASCAR and would definitely deploy if a car was airborne.
stiiggy
3rd Mar 2008
Talladega Nights: The Ballad of Ricky Bobby (2006)
Correction: What you say is correct, but, they could simply have failed.
Roof flaps are checked by NASCAR frequently. They don't fail.
Correction: Yes and no. The roof flaps only deploy when the car is going backwards.
stiiggy