flooded car carsh?

(please do not mind The voice i tried) it's a rainy day and you're on the freeway it's been raining since 4:00 a.m. and the freeway is flooded then suddenly the red car in front of you engine got filled with water and stopped working you hit the brakes now what will you do (btw this is based off of ture events well I live there was a car crash a few of them at least)