I thought that there was a forum for this though did not see it nor could I find a related thread so I'm starting one.   I recently saw an S30 Z car on Miami Vice season 3 episode 11 about 30-33 minutes in (on the TV version with commercials, a DVD version it will be earlier that this of course).  In this video it is about 27-28 minutes in:  https://www.nbc.com/classic-tv/miami-vice/video/forgive-us-our-debts/n30591