ryanjm
Tesla Podcast Host
Furthermore, Elon did "confirm" SAS for Model 3 in his post-March 31 tweetstorm last year. I use quotes because plans can change and maybe they have. But as far as we know *for now*, SAS is in the cards. My guess is that if it happens it will be tied to Performance or maybe offered once AWD comes online.
Since I'm feeling lazy on a Saturday, I went back and studied the reveal presentation. If you remember it showed the 3 being built up from the battery, electrical harnesses, then suspension and motors etc. and at least in the rendering shown it definitely shows what looks like air struts not coil springs. Granted what was shown was most likely the P-model since it had red brake calipers so it may be performance specific option, but pretty sure it will be available on some variant at some point. Of course, things could have changed since the reveal, but my bet it will be offered. I'm too lazy to attach an image, maybe someone else can do that.