Tim(e), your wrong re the R plates. You only have to display R plates for the first year of driving. Same as if you pass a Motorcycle test after driving a car for more than a year, R plates are not required, same as when an HGV test is passed, or a PSV. People who pass a test after disqualification DO NOT need to display R plates.
Marc.W definately sure your incorrect, I get asked questions like this in my work on a regular basis and have got the definative answer re R plates from Road Policing Development Department, Lisnasharragh. R plates are only for the 1st 12 months as a new driver, if you then pass driving tests in other groups (M/C, HGV, PSV) or have to resit a test after disqualification you DO NOT have to display R plates after successfully passing a test. How many Articulated lorries or buses have you seen with an R plate displayed?