Yes, Teslas have buttons to open the doors, but there are also mechanical releases as a backup [1].
The backups unlock the doors "no questions asked", so to speak, which includes possibly damaging the windows (because they don't get lowered out of their seals). For the front doors they are so intuitively placed that pretty much all of my first-time passengers have already used them before I can tell them to press the button instead.
Models other than 3 also have mechanical releases for the rear doors, apparently, but using those involves removing floor mats (according to the owner's manuals, no personal experience).
The whole header is encrypted, including the Host header and request line. Certificate selection and routing relies on SNI[1]. The server name in the TLS client hello message is almost always, but not necessarily, a copy of the value of the Host header field.
There is no difference between you moving with velocity X and the other party moving with velocity -X; or you moving with velocity 2X and the other party being stationary; or you being stationary and the other party moving with velocity -2X. There is no experiment you can perform that will tell the difference.
It's only allowed at some intersections. There's a sign that allows you to do it, an unlit green arrow [1]. This sign is pretty much exclusive to eastern Germany (it stems from the former GDR); you'll almost never see it in the western parts.
The backups unlock the doors "no questions asked", so to speak, which includes possibly damaging the windows (because they don't get lowered out of their seals). For the front doors they are so intuitively placed that pretty much all of my first-time passengers have already used them before I can tell them to press the button instead.
Models other than 3 also have mechanical releases for the rear doors, apparently, but using those involves removing floor mats (according to the owner's manuals, no personal experience).
[1]: https://www.tesla.com/ownersmanual/model3/en_us/GUID-7A32EC0...