You would hope that in a movie about time travel, the producers would keep everything in chronological order. But no!
In the two sequences where Marty is speeding in the car, that is, when he is trying to get away from the terrorists in the beginning, and when he is trying to accelerate fast enough to get back to the future, there are several shots of the odometer of the car. If you watch the number of miles, the jump all around, according to when the sequence was shot and not according to any timeline of the movie. Serious mistake!