As @
drmanny3 said most of the improvements the average or above average driver would never be able to tell. The new tires had the biggest impact and I would guess most NSXs are now on the CS6 or another tire. Easiest improvement.
In my 17 I’ve never thought, hey I wish this was flatter around corners. It’s damn flat so the 17 sway bars are fine in my opinion.
And for the electric motors up front and SW tweaks, for them to kick in with SH-AWD added, on the street and around a corner you’re really pushing and getting into big speeds really fast. Maybe some do this but around here it too risky. About the only time I get a boost from the electric motors is when passing or on a straight section with plenty of visibility. Maybe I do get a slight boost in some corners and I can’t tell, which is fantastic its transparent. All depends how strong your self-preservation instinct is.
All these improvements help on the track. I bet if most of us did a blind test with a 17 and a 20 we couldn’t tell the difference - street or track.
I call this video BS as he’s school-girl giddy with these improvements driving on the street. The 2 seconds at Suzuka was by a pro (assuming factory Honda) and I wonder how many laps it took to get that 2 seconds. Maybe the video is a way to save face as reviews and opinions are changing to the positive.