Corrected entry: When Memphis has the Mustang 500, he is driving backwards through traffic and a parking garage trying to elude the police. It's been established that the Mustang is a stick shift. Tell me anyone could drive that fast backwards with a stick shift. The reverse gear in manual transmissions is geared VERY short. You would get 10 miles an hour, maximum - with the characteristic gear whine that goes with it. (01:29:54)
Corrected entry: When Nick Cage breaks the mirror off the Shelby Mustang, it remains hanging by it's wires. The problem with this is that Ford wasn't putting power mirrors on cars in 1969.
Correction: The wires are probably the cable used to manually adjust the mirrors. Even in the 60's some cars had a manual adjustment on the door panel that used a cable for adjusting mirrors from inside.
So a car that has been heavily modified, and has a very small percentage of original Ford components left, and it's the mirror that couldn't have possibly been changed out somewhere along the way?
Corrected entry: In the scene where Kessellbeck is staking the crew out after he receives the tip about the Mercedes keys getting picked up, he's looking through his binoculars and the list of cars on the blackboard is in the background. Later after the attempted bust, he goes back searching with black lights to find clues and only discovers the list at that time.
Correction: The door was only opened for a few seconds while two people entered. It's highly unlikely Kessellbeck was interested in the surroundings, more that he was noting the people who were present. He wouldn't notice the list of cars.
Kessellbeck was looking through the door at Otto's shop where they had their list, but the list he found using black lights was the warehouse used by Kip and his crew prior to getting busted.
Correction: It is true that reverse gear in manual transmissions is short but not shorter than 1st gear. If my regular Civic can hit 50km/h in reverse, I am sure a GT500 (which is much more powerful, therefore with a longer reverse gear and final gear ratio) can hit way more than 10 mph.
30-40 mph is very achievable in reverse in any performance-oriented car.