What I mean is "you're not allowed to register a car again after that point". Most people sell it across the Strait in Malaysia. This distinguishes them from the US and India, where you can drive a car until it doesn't work anymore.
No, Singapore does allow you to register the car again -- problem is, this requires paying for a new "Certificate of Entitlement", which are sold at auction for >US$70k each. So most people switch to a new car instead.
Also, your US numbers of course vary by state.