What if in the Outpost there was another vendor who sold Mechs, Hover-bikes, Cars, etc for large amounts of Pixels (In the thousands). They could vary in damage depending on tier, each one unlocking when you reached the next tier (from Iron to steel etc.) There could also be Missions to find special variants of vehicles, For example you would have to go to the vendor and click on a tab that says missions, then go to a specific planet fight a boss who has the special vehicle and the tech would be unlocked. Variants could be like a Human mech, but instead of machine guns it had Flamethrowers and a different paint job, or Hover-bikes that were slower but had a small gun mounted. I think it would really change how vehicles feel, add a lot to the game. A really bad concept of what it could look like.
yes this would help people travel and explore the huge world that usually takes ages to go around. Of course it should take pixels but maybe there should a quest giving you vehicle