Crackdown on untaxed cars in Edinburgh. Traffic wardens equipped with vans packed with ANPRS cameras are driving around Edinburgh checking for cars which do not have a valid tax disc by reading their number plates. 60 cars are towed away and impounded each week and if the owners don’t pay the £80 release fee plus back duty the car is crushed. DVLA said the crackdown makes the roads safer as most untaxed vehicles also have no insurance.