[Treeve]

Actually, you've missed the point - you can't just say it's unregisterable - it's another power they've been granted under the anti-hooning laws for unregistered vehicles being used. If you were to change out normal wear and tear items such as tires, or standard components frequently modified such as the exhaust, and return it to registerable trim, then plates or no, (stickers are gone soon, so lets ignore them), your car is registerable. This means unless you have something in particular which is unregisterable by the RMSs own rules (eg full cage in a sedan), then tough cheese, they've got you. And this is the injustice whereby the police are given extreme powers because 'Today Tonight' gets a whiff of a hoon story.

Treeve