[Melatonic]

True - but couldn't the same be said for ID then ? Just memorise your license number - cops have been able to look it up in their car computer for years. Saved me at least once.

Typically also they don't even bother with looking at your registration unless the sticker is way out of date

[janalsncm]

There isn’t a simple mapping between IDs and car registrations. You can borrow a friend’s car without telling the government about it.