as Rog says, the inside handle is different
I put doors off a K reg Azura onto my G reg Saph....... put all of my door trimmings back on and the very last screw I tried to put in would'nt go (release lever)
the hole the screw goes in is in a different place on newer doors (about 10mm higher I think)........ had to take all the trim back off to drill a hole in the right place
Think this was only on the front doors
.......
also I had a problem knocking the pin's out of the hinges on the G reg........ but on the K reg they knocked out easy
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Rear doors........ little slot for the child lock is in the wrong place
vertical on one & horizontal on the other..... can't remember which way round it was