It doesn't happen like they portray in the movies.
So are you saying they would just drive through and keep on goin? Like, no problem?
I guess I can simply see it not going so easy driving really fast in a vehicle not really meant for good handling while getting shot at from several different angles in a vehicle that PROBABLY isn't bullet proof. Shot through the doors, windows, or a bullet to the tire pretty much ends the dream. That and it is a gas tanker truck which doesnt make it any safer than if it wasn't.
My guess is they crash, gas goes everywhere, and they either explode or one of the nice motorcycle fellas lights em up.