if the car is sorn off road and you are caught driving it, they can take the car and give you aŁ5000 fine and you ve still got to tax it and pay back the back duty on it, they will tell you, that you should have taxed it before you went to pick it up, its more serious if the car as been sorn off road than if you ve just not renewed the tax on it, and if its sorn you cant tax it until the logbook comes back in your name as you ve to take the log book in your name to tax it