5 k-plates. 3 white, 2 grey - If you believe the rumours.
I saw a white k-plate go to Ireland, where it was transferred to Irish plates, so that's one gone. I nearly bought a white one on a k a fair few years back with a mate, because it was up for pennies. We had too many gtt's between us at the time, so we didn't bother :lol: . I've never seen a grey one though.
As has been said, any j's (of which there are plenty) and k's, are just cars that were built and sat around for ages, before being registered/sold.