I observed some things relating to the V3S.
1.: Your temperature is dropping pretty fast, while driving a V3S. This means, even if you're hot, when you enter the truck, it doesn't take a long time, when you will cool down until the freezing Status.
2.: The hitboxes of the truck and trees are "messing" up a little bit. This means if you pass too close to a tree with your truck, the hitboxes will collide, which will force your truck to glitch/bug into the floor and you need a little bit of luck, to glitch/bug out again, to continue your journey.
3.: Driving the V3S outside the "map-borders" will make it fell through the ground. This means, if you leve the map with your truck, it will fell through the ground and will be lost forever. Additional to this, as driver you are unable to do anything else then starting/stopping the engine and switching on/off the lights. If you're on the passengers seat, with a little bit of luck you will be teleported back to the surface without doing anything, but there seems to be a risk, that you will spawn fresh after logging out. This I observed with a mate of mine I was playing with.