Slightly late to this, but here are my thoughts.
The rim and spokes of the wheel look production ready in the white car, not so much in the blue one as the 6 o'clock spoke looks proto-typed.
The centre airbag/ horn "boss" with the T on doesn't looked finished in either, you can see what look like hand tooling marks. Personally I think it's still a stand-in for a production part, maybe they are waiting on final supplier part. (Cutting it close!)
I like the new stalks. Clearly moving away from Mercedes for switch gear means they have been able to stream line things, and rather than using a control designed for an automatic they have been able to use something more applicable to Tesla. (We can't really see, but the window switches also seem darker than the MB ones, so I'm presuming they are new too. )
I'm reserving judgement on these a little, as until we've actually used them we won't know how they feel to operate. Tesla got the benefit of some of the best weighted stalk controls in the market by piggybacking on Mercedes parts bin. Let's hope these feel as good. If they do, personally I'd be super happy if those stalks filtered up to the S/X.
I can't see how the steering wheel adjusts. I'm presuming at this price point it's a manual locking lever under the column shroud. (Though could be electric but exclusively operated from the screen. I guess we will have to wait and see).
As for the two sphere's . They look to me like the scroll wheels in gaming mice, and likely to rock left / right giving the same number of functions as the model S's scroll + two buttons. I like the concept, and it clearly reduces wheel clutter. It does look a little bland, but maybe that's because their is no iconography / graphics, like you would have with separate physical buttons. Of course this also means, you could fully customise what they do switch left / right.
Overall I actually like these cars as presented, at least visually. Proof of the pudding for car interiors really is how they feel in the key touch points (stalks handles steering wheel). I don't think these are the $35k versions, more likely the premium spec. how well the cabin fares after swapping the leather out for fabric and some of the door handles out for plastics in the base models that's harder to judge.
