Finally found a PRT (of course it was at the last spot of the map where I looked for it :), so I could do a little test drive... after I managed to get it come down from the 10-15 meter height where it was floating in the air.
I found it next to the North-East Hab which ended to be my Gamma. When I initially approached the habitat, the PRT was on the ground, but after I entered the Hab to rest, then exited again, I found it floating in the air above the spot it was originally at. Reentering and exiting the Hab again did not change this, but exiting to the main menu and continuing the save placed it back to the ground.
Driving it feels a bit odd as the speed control seems to be half way between a car and a train: forward/backward acts as if it was setting a tempomat or something, but not entirely. Under certain circumstances it will lose speed over time, holding forward down for a longer period causes it to accelerate to a max speed, but when releasing it, it only slows down to about half speed then maintains that, more or less. Some kind of visualization for this throttle setting mechanism would probably make it easier to have a sense for and control this set speed + overdrive control scheme.
Its terrain climbing capabilities should be limited somehow, as I could drive it up on hillsides which looked to be much steeper than what any wheeled wehicle could climb, especially something that looks to have such a high center of mass as the PRT, without sliding back/toppling over.
The default "Exit" control for the PRT is "Q", which is also the default for the scanner in walk mode, which results in the scanner turning on every time you exit the PRT unless/until you change it.
Exiting the PRT with its lights turned on results in the suit lights also being turned on. It's not necessarily a bad thing, but this automation, if we consider this a feature, isn't really consistent. The player character doesn't automatically turn the suit light on when it's dark, so why would she do it when exiting the PRT?
While these are probably planned features, but being able to look around (within at least a limited field of view) while driving is pretty much a standard feature in similar elements of other games, and not being able to use the datapad makes any kind of navigation impossible, and it's also needed for managing suit supplies, checking vitals etc. when driving, just as much as when walking.
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