Well Goldeneye came out in 1995, at that point in time the Z3 was just being launched and the M Coupe probably still an idea (launched in 1998 if im not mistaken)
AFAIK the Z3 was based on the E36 3 Series Compact, which had the front end of an E36 and the Back of an E30.....
by the way, Wasnt the "Z-Axle" Rear end the more expensive and complicated setup that was used in the E36? If memory serves correctly I believe the E30 made do with a trailing Arm setup, which in turn was fitted to the E36 Compact for cost reasons, and therefore the Z3....