Continuity mistake: In the scene after Dom and Brian arrive at Dom's place, Vince walks up to Dom and tells him "he had no right bringing the buster there." Just before Vince walks up, you see Dom sitting down putting his hand on his head. Next shot cuts to Vince walking up and cuts back to Dom who getting ready to sit down again then puts his hand on his head.
Continuity mistake: When the first street race takes place with the four cars, it is evident that the race takes place along a straight stretch of road. However, when the race finishes, everyone who was at the start line just a minute ago has magically appeared at the finish line, miles down the road.