Plot hole: In the armored car robbery scene, we see the guys hoist the car over a barricade with a crane, then nonchalantly open the driver's door of the truck to get the driver and co-driver out. Armored cars' driver's doors can only be released from inside the cab, by the driver with an electric lock, unless the person has a key for the door. If the driver was halfway doing his job, they would have had a much tougher time getting in, not to mention the fact that the driver is also armed, and the majority of armored cars also have shotguns in the cab. Since none of the gang had a key for the driver's door, the easiest thing for the driver to do would be to just sit there and either wait for help or drive away. The cargo area of the truck is also bulletproof and not accessible from the cab. The drivers could have simply let them take the gold if they didn't want to get involved, and not risk injury or death by opening the cab doors.