She was so stupid, and somehow MC runs down a car? Just bad writting...
It probably was just something like 1 or 2 kilometers. R*pe Guy #3 said the "secret beach" wasnt far away. Running at 20 kmh average (which is reasonable for a somewhat athletic student) makes you run 1km in 3 mins. Lets say he drove with 40 kmh average, he had a 1.5 mins head start. Surely you can argue it, but it isnt totally unreasonable time line wise. Give or take it a min, still can make sense considering he made some small talk, fastened seat belts etc etc.
I admit its super fast, still 2/3rd of WR time. I didnt measure my time for this distance, but had a 16kmh average on 4km when I was 15 years old and my genetics suck. Pretty sure there are not few students able to do 20kmh+ for that distance.