I've always wondered how fast the newer models could go around the ring. We only have the older version + N-Attack pack lap time. But I've done my best to calculate some lap time (cuz why not?). Disclaimer - these are just calculations, figured out by my racing experience, car's actual performance in other tracks and etc. I would say the actual ring time will be quite similar for these lap times if not the same.
2015-2016 models - 7:11 (w/o N-Attack pack and yeah I would say that N-Attack pack is just a 4 second lap time gaining scam. Also, this model easily out performed the LFA Nür and ACR SRT-10 back in the day, so I'm confident with this lap time.)
2017-2019 models - 7:08 (this car is very similar in performance with the AMG GT R and 600LT, which have done 7:10 and 7:08 respectively, but the Nissan would have a slight edge over the Merc because its AWD system and OP acceleration. On par with the McLaren at 7:08.)
2020-2023 models - 7:03 (Nissan only said leave me alone lol. I think it is possible, cuz this particular model was almost a second faster than the pre-2020 model around Tsukuba, 9 tenths is a huge time gain in a smaller track like that)
2024-present models - 6:57 (not quite sure but obviously a sub 7 minute would be possible with those new updates, this model had a huge downforce boost, new front diff, optimized weight distribution and aero.)
Still a strong performance car but quite expensive (the Premium version is a great bang for buck though). But I'm just happy it's still hanging around in the market, one of the greatest cars ever built imo.