Just before Beck and the other police officers are ready to shoot at the speeding Ferrari, the camera follows the Ferrari and we see the police from Jack DeVries point of view. At the top of the hill - before Beck starts shooting - you can see a gun going off before the actual shooting starts.
At the end of the first car chase Sanchez and some of the other officers train their shotguns toward the speeding Ferrari of DeVries. The next shot shows these officers standing with their guns at their side, while in the shot after that, their guns are once again pointed towards the Ferrari.
Early in the movie, when Tom Beck is about to shoot at DeVries speeding in a Ferrari, he throws his jacket haphazardly over his car door. In the next shot his jacket is very neatly folded over his car door.
Masterson's M72 LAW rocket would not have exploded so soon after leaving the launch tube. By design, the LAW rocket must travel 10 meters before arming itself. If it strikes a target closer than 10 meters, it will not detonate.