In the UK we have many police vehicles (including unmarked) with satellite
link to the PNC database for road tax, insurance and MOT. They simply drive
around reading number plates with their ANPR camera, mostly they drive main
routes backed up by interceptor cars but they also trawl out of the way
estates where tax, insurance & MOT dodgers think they won't be noticed.
You can buy a brand new one built in the USA from NOS parts according to a
recent car mag.
(don't ask me which one)
Many of the original faults are even fixed. And a supercharged version is an
option.
Of course you can probably get a decent car for the same price though