Revealing mistake: There is one shot of the Duke boys in their car talking to Uncle Jessie with the CB radio. You can hear Uncle Jessie respond (through the radio) while Bo/Luke still has the button on the microphone pressed. When the button on the mic is pressed, no sound comes out of a CB radio at all, as they cannot transmit and receive at the same time.
Revealing mistake: When Bo has won the race and he is heading back into Hazzard County he drives past a carpark that has three General Lee's in it, one Rough Paint scheme and two with the proper paint scheme, as well as police cars.
Suggested correction: It was deliberately done as a tribute to the first episode of The Dukes of Hazzard in which a duplicate General Lee can be seen in one shot during a chase scene.
Revealing mistake: In the scene where the Duke Boys are driving to Atlanta to have the core samples tested, they are on the interstate and the people are commenting about the roof of the car. If you notice the Boys are higher then the passage cars, but with other shots you can see they are at the same height as the other cars on the road. Most likely this would happen with the car being filmed on a trailer going down the interstate.
Revealing mistake: In the beginning when General Lee approaches the pile of dirt when the road runs out, the dirt pile is small but when the shot changes to side view so you can see the car jump, the pile of dirt is now much more "ramp like".
Revealing mistake: When Bo lands General Lee on the highway after going up the ramp, in one frontal shot you can see the front left wheel of the car come apart completely and break its suspension. But the car is unaffected and continues to drive. (01:07:45)
Revealing mistake: When Uncle Jesse punches Boss Hogg (Burt Reynolds) it is clearly not his, but a stuntman, in the shot from behind as he rolls back over his desk. (00:49:40)