Continuity mistake: Throughout the entire vault chase scene, the condition of Dom and Brian's car windows switch between being damaged and perfectly intact. (01:42:20)
Continuity mistake: In the scene where Gisele is pointing a gun at Roman, Gisele's finger moves from on the trigger guard to the trigger in different shots. (00:41:25)
Visible crew/equipment: When Mia and Brian are about to jump off the roof, when a gunman takes aim there's a cameraman to the bottom right below him. (00:32:35)
Continuity mistake: As the cars are being stolen from the train car, they're violently dropped onto the ground, yet they don't have a scratch on them. The best example is the vintage Corvette that Vin Diesel drives out of the train car. The car falls at least 6 feet, landing on the front left corner of the bumper, yet seconds later, the car is in perfect condition. (00:14:40)
Continuity mistake: At the start we see Mia driving a Honda NSX with with the aerial up. Camera changes and the aerial is gone. (00:01:20)
Revealing mistake: At the start when Mia and Brian are rescuing Dom, we see Mia do a handbrake turn. Look at the ground and there are skid marks visible from previous takes. (00:02:00)
Continuity mistake: The hole in the plastic which is around the vault Han ordered changes after Tej says "You got a 100 million dollars in a safe, are you going to put somebody else's handprint on it?" This is easiest to spot around the palm scanner: at first, it is completely free, but after that line, the plastic suddenly hangs in front of it. (01:05:40)
Continuity mistake: There is one point during the vault scene where a cop is leaning out the passenger window shooting at Brian and Dom while driving down the pavement. However when that car crashes just 2 seconds later, he's not in the window, which has been wound up. (01:47:50)
Continuity mistake: When Hobbs and Dom are fighting, there is a shot where there is a yellow hammer by Hobbs' head, which disappears instantly. (01:32:25)
Revealing mistake: When Dom is on the bridge and swerving with the safe, tyre marks from previous takes can be seen on the ground. (01:46:50)
Answer: Hobbs doesn't see that scene, though he probably does guess part of what happened - ie. that they swapped the vaults. The scene is played as a reveal for us, the audience, to show us how the vault that is supposed to be full of money is now suddenly empty.
roboc