Fast & Furious 8

When the crew is shown the garage of all of the cars including the army tank, you can see Paul Walker's GTR that his character drove in Fast & Furious 7 (2015) up on top of one of the three-tier car racks. A subtle tribute to the late actor.

There is no way the Akula Class submarine could have come remotely close to keeping up with the vehicles on the surface, let alone overtaking them. Even though the Akula was rated as one of the fastest submarines in the world during the cold war, with a reported top speed of between 28-35 knots (32-40 mph) this would be far from what the cars and trucks were apparently doing speed-wise even IF the reported top speed was DOUBLE what has been reported at 70 knots (80 mph). The part where the submarine broaches (comes to the surface) and overtakes the vehicles WHILE cutting through the ice is comical as the Akula classes reported surface speed is 10-12 knots (11-13 mph). A knot is only a measurement of a nautical mile per hour which is equivalent to about 1.15 mph.

The British version is cut for violence to secure a 12A rating, reducing a neck break as a result of a heavy punch to the jaw. The uncut version would've been rated 15.

Edited into The Fate of the Furious: Extended Fight Scenes (2017)