If you order one today, as part of the checkout process, this is what it says about FSD:Things the buyer is shown, or has to click through/on, to purchase FSD.
It specifically mentions "eventual full self driving via software updates." They are selling you the future here, and mentioning it directly, and clearly telling you that there is more to come.
Not convinced that the only thing you buy today with AP is the features that are there today (and the "coming soon" city streets autosteer). Tesla's checkout process leaves some ambiguity here, driven by the fact that they call the option you buy Full Self Driving Capability, and then the words above.
They could be a lot clearer if they really want to communicate to their customers that all you get is what is there today, and that "Full Self Driving" is only L2. Especially since if you look at what Tesla calls FSD on their autopilot page, they define it as this:
"Without supervision" sure sounds like L3+ to me...
Full Self-Driving CapabilityAll new Tesla cars have the hardware needed in the future for full self-driving in almost all circumstances. The system is designed to be able to conduct short and long distance trips with no action required by the person in the driver’s seat.
The future use of these features without supervision is dependent on achieving reliability far in excess of human drivers as demonstrated by billions of miles of experience, as well as regulatory approval, which may take longer in some jurisdictions. As these self-driving capabilities are introduced, your car will be continuously upgraded through over-the-air software updates.