So i died in a very stupid way and when i started the game again, with the pod landing on the landing pad, i notice that all my vehicles disappeared. I had 4 vehicles in my base (a rover and 3 medium trucks, two of which had machinery attached - the large shredder and the fuel condenser) and they were all gone. Fortunatly, the truck i left in the cave was safe, but the ones at my base were all gone.
It is worth mentioning that they were all connected by power cables.
Got to go now. A lot of exploration to do!!