Checking price on TeslaMotors.Com of buying new 70D. I'm looking very closely at the options and what I can put off til later. I was under the impression that the base model comes with air suspension. Is that wrong? Obviously, with my understanding, the "Smart Air Suspension" option would mean that it just behaves differently but that either way whether I hit the option it would be with air. I'm starting to wonder if actually if I don't hit the option I would get springs. Now, if it comes standard with air, then is the option upgradable in the future, like a software option? Obviously if springs are standard than I wouldn't look for a hardware upgrade as likely, and this air (with a silly long name) would become a must-have, which is worse for me financially. My back is not the best for bumps. By the way, I want Magic Body Control from Mercedes, so I kind of look down at Tesla's "Smart Air Suspension" as not smart, so in addition to it not being that smart, if it is also the name for their standard air, then that makes the option being named "Smart" even more silly AND confusing.