The 370Z didn't change much at all from '09-20
Going off the top of my head here....
'12 it got an "oil cooler".
'13 it got the front end refresh and the gauges went from Gunmetal Face to Black Face and new wheels and I think it got a backup camera?
'16? The non touring head unit was changed to...
I've seen maybe 5 in the wild since launch.
1 Proto (Yellow) on Beltway 8 North by Greenspoint, Early '23
2 Sports (Gunmetal, Rosewood) in Chinatown on the same day, Lunar New Year '24
1 Performance (Black) in River Oaks, July '24
1 Sport (White) in Fulshear with Christmas Lights stuck to it...