The Bombardier Aerospace Challenger 850 the FBI boards to catch up with the fugitive, has a top speed of .80 mach, or approximately 488 mph, somewhat faster than the prototype Chevrolet the fugitive is driving.
In the cornfield chase towards end, the Camaro's driver side view mirror is broken off when the Corvette rams it sideways. It remains missing for the chase but it is undamaged and returned by the farm machinery strike and when Sheriff Ray handcuffs the walking fugitive to the car in the last scene.
When the sheriff is being dragged in the car through the corn field, he shoots through the open driver's window at the villain. When the villain drops the car with the sheriff a clear shot of sheriff's car shows that the window is closed and there is nobody inside.
During the initial scene of Cortez being broken out of the FBI convoy in Las Vegas, the camera sweeps by a blue street sign showing the action occurring on "5th St." There is no such street sign in Las Vegas, as 5th St. was renamed "Las Vegas Blvd." in 1959. Furthermore, street signs in the City of Las Vegas are green, not blue.