I happen to like the my P85D's SAS+ suspension. My wife's S has a regular SAS on it, I'm as crazy about it. I get that the Raven suspension might be good too, but since I already have suspension that I like, not a reason to upgrade. As a side note, I was close to buying a new P100D earlier this year when the price was at its lowest ($99K for white on white) but got soured on the idea after going though the yellow screen issue with my wife's car. Besides my own issue, I sat in the service center for a over two hours while waiting to find an ICE car rental (no loaners - $100 uber credit doesn't even cover a round trip home, nor does it cover all the errands my wife does with the car they were fixing), listening to other frustrated customers, listening to official Tesla responses for example on how they wanted to charge someone who has a brand new Tesla for diagnostics (hourly), even though the person bought them video of the issue happening, eventually telling him they will wave the diagnostic fee for this one time, but unless he can give reproduce the issue they will charge him if he brings it in again. I was supposed to test drive a Raven during that visit, after dropping off my wife's car, but had to tell the sales guy I'm delayed because there was no rentals (yes, enterprise ran out of cars), and by the time I was provided a Kia rental I just told him not to worry about it, no reason to bother with the test drive if I know I no longer wish to buy another new Tesla.