the driver has plates on, so this isn't bright. but, if you're in a decent size truck without plates and you're in a situation, this is actually not a bad tactic. you're never going to outrun them, or win a car chase. but, if you can knock the cars out of commission and get far enough away to ditch the vehicle, there's a relatively decent chance you can get out of it.
i mean, it's a better tactic than trying to win a chase, anyways.