Wait until it gets to the scenes where she is infront of the moving truck and they are crossing a bridge. A few moments after that they come to an intersection and they go straight. There are two white cars that are about to turn. If you look closely, right after the truck goes under the trees you will see the second car hit the first one. Whoops.
Actually, it might possibly be that it did happen in real life. Why would they waste time on making it happen? They were doing an overhead shot during the day and it happened.
Actually if you watch it carefully the car comes close to hitting the other one, but in the end just got in front of the other car. There was no accident.