This'll be a F-reg , will it ?. http://www.express.pwp.blueyonder.co.uk/zeebay.htm

they do do f reg Z32's the first one i bought was, a good guide to see if its guenuine is the chasis no should be between 500001 and about 500250, but however do be carefull DVLA tend to register them as Z31's (old shape) this was the case with mine. My new one (1992 model) is registered as a "nissan 300zx 2+2 turbo coupe, the old one was registered as a "2 axle rigid body coupe" but on a plus point the insurance was cheaper!