So I recently found a 2018 model 3 long range that has less than 40,000 mi on it that the dealership is advertising for 35K.

It has the premium package installed with the heated seats. I don't know if it has any software upgrades that have to do with autonomous driving. Cosmetically the car is in very good condition inside and out.

Are all 2018 Model 3 long range all-wheel drive vehicles?

Also what kind of self-driving features can I add after purchasing it?

Is this a good deal? There's a rumor out there that Teslas will get much more affordable in the next few months after the car market starts to stabilize. Is it a good idea to wait or go ahead and jump on this deal?