“our county or city cops with 20,30,50 cars all in with radiators shot out or damaged engines? You are now out of confiscators.”
Or, if you shoot them through the gas tanks when there are no police in them (so as to avoid casualties), then you can destroy the entire car. Most decent center-fire rifles will penetrate, and once some number of gallons have spilled out, hit the gas with tracers or else just try to create sparks with FMJs or steel-core ammo. This would seem to be a more effective result than having the car out of commission for a day or two.