What kind of driver are you? Do you like outright speed and fastest times, or do you like canyon carving and the feeling of being immersed with your car? Most people think automatic are faster than manuals in the case of the 370z that statement is a half truth. in 2015 Nismo 370z with a 7 speed auto, Car and Driver ran 4.9 second 0-60 and a 13.6 second 1/4 mile run. where as Motor trend ran a manual 6 speed Nismo 370z from 2015 running a 4.9 second 0-60 and 13.5 second 1/4 mile. This shows the automatics and manuals are evenly matched. so what do you choose? For starters the auto will 100% gets those times where the manuals are all driver skill and will only go as fast as the driver is capable and maybe even faster. So in the end if you want consistent times buy the automatic but if you want to have some becoming a better driver and feeling the motion of your car buy the manual.