Factual error: When Brian tops out his Eclipse, it spins out. A car should not spin out at top speed. A car will either reach a drag limit or, in this case, hit the engine's fuel cut off, and should continue straight. He did not jerk the wheel to make the tires lose traction, nor did a tire blowout. Imagine if a magazine editor tested the top speed on a Viper, he would be spinning from 186 MPH. No one would be testing top speeds on cars if this event occurred. (00:03:45)
Factual error: In the final drag race against the charger vs supra, when Dom launches the charger it isn't smoke coming from the tires as it dissipates very quickly, indicating it's a fog machine or something similar. And as every car guy will know, two things that happened during Dom's launch are both possible separately but legitimately impossible to do at the same time, as we see Dom pulls a wheelstand while his tires are spinning. It makes for a cool shot but physically impossible, you need traction to do a wheelstand meaning zero or minimal wheel spin, and if his tires were doing a full blown burnout, he could not have gotten the front end to come up as it does. Not to mention as he pulls a wheelstand, the entire front end comes up before the car even started rolling, if it was a true wheelstand, it would've gone at least 7-8 feet before the front end reached max height.
Continuity mistake: In the scene where Brian is chasing Johnny Tran, he stops the car and shoots Johnny. Johnny spins out and falls off the bike. While he falls off the bike you can see a shopping cart on the side of the road, but when Brian runs over to see if he is dead, the cart is gone. (01:34:15)
Continuity mistake: In the scene where Dom is pulling his red RX7 into the garage after the first race is broken up by the cops, he is making a right turn into the garage. When they cut to the front of the car pulling in the garage, his left signal light is on, meaning he made a left turn into the garage. (00:23:59)
Factual error: Brian tells Dom that hector is running spoon engines with T66 turbos and a motec system exhaust. Spoon engines are typically 1.6L and are a terrible drag racing choice, also a 1.6L engine cannot properly spool a T66 turbo as the exhaust gasses do not have enough pressure to effectively spool the turbo.
Other mistake: When the first trailer/truck is hijacked and the harpoon is shot in through the window into the seat, you can see the driver is very clearly looking out the side window next to him instead of looking at the hijackers in front of him. It's almost as though he doesn't know that the others are there! He also looks incredibly relaxed and not at all worried about the fact that a guy is climbing up a rope into his cabin when there is a lot of expensive video equipment in the back of his trailer. (00:01:53)