We don't own a Model Y, but I am pretty keenly attuned to suspension settings (much to my wife's angst as I go on and on and on about NVH, etc.). Anyway, we have test driven a Model Y Performance in the past and even Turo'd a MYLR (w the 20" induction rims) for 2 days (put 200 miles on it). The MYP (2021?) I test drove was, well, not good with regard to suspension. I took it on my local "test roads" and it was almost comically bad...the washboard surface road really set off the boominess and buffeting and it just had an excessive amount of head toss and was just busy...fatiguing. The MYLR on 20s was driven a while later (still a year ago). It was definitely better than the MYP - still not great, but a decent notch better. At one point I hopped in the rear seat while my wife drove...yeah, not fun back there. The MYP has a lower suspension, but I think it is valved slightly firmer too - when you combine that with the 21s...well, not good.
Flash forward to this past weekend and I test drive a 2023 MYP (January build). I snapped a pick of the rear shock # and it was the latest "F" revision per the EPC catalog. It was still firm - really too firm and too busy. HOWEVER, on my "washboard surface test road" there was no denying it was better than the last MYP I drove. The old MYP just tossed and boomed/buffeted the whole time. The 2023, conversely, only did it on the worst sections (note: I even pulled over and quickly adjusted the hatch stops to try to get it a bit better - could not...only had a 30 minutes for test drive!). So, it does appear to be a noticeable amount better, but I could see where some people might not notice it unless you were doing some back to back tests on the same segments (or were obsessed with suspension feel like me). Tomorrow, I am scheduled to test drive again...but this time a 2023 MYLR with the 19" Gemini wheels - "theoretically" the smoothest combo. I say "theoretically" as tire pressure, tire compound, sidewall stiffness, etc. all come into play here. Indeed, I replaced the older DWS06 tires on our Volvo XC60 with the latest DWS06+ and it definitely feels smoother (admittedly, there is more new rubber there so....yeah...variables).
Finally, I have some similar experience with our Volvo XC60 R-Design. The Volvo had 17, 18, 19 and 20" wheel options. The R-Design had the 20" wheels and sport suspension. I knew right when we got it it rode too firm. After 90 days I had paid analyzed the ride to death and determined 90% of the problem was with the rear suspension. So, I ordered the base touring suspension rear springs and shocks, climbed underneath and swapped the sport springs/shocks for the base touring units...best....move...ever. Zero regrets. For those of you with older cars, no need to "buy a new one" IMO. If you do a test drive of a new one, I suggest finding a road near the test drive location that is marginal. Drive to the appointment in your Model Y, drive on that road, and then take the new car out on the same road for back-to-back comparison. IF you believe there is a decent difference, consider just buying new suspension components (struts, shocks, and springs) and swapping them over (or paying your favorite shop to - there is nothing Tesla specific in these parts of the car. Heck, I might even suggest starting with the REAR first and just do the shocks and springs (note: I am assuming Tesla changed the springs too...but it may have just been the dampers). You MYP guys can take it a step further if you are willing to give up the slight drop - you could put the regular dual motor shocks/springs in there (i.e. what I basically did on my Volvo).
Just my .02!
