If you let your car run out of rego even by 2 weeks it is still unregistered but you might get away with It would be best to call them and find out dont email them like I did about registration and got the email today after I already sold the car 2 weeks ago how dumb is qld transport
It's unregistered, but your registration is not cancelled immediately. There's a window where you can pay it late (but not drive it) without needing to get a new RWC