Hell, we don't even need RV's. We could live in a brand new trailer every night. We just need some long heavy duty extension cords to power our chargers 😜
Rope bridges, teetering bridges, log bridges, etc would make fun obstacles. The log bridges can be uneven so it tips the truck to one side. Make obstacles that are extremely had to climb over, like really steep rock faces. Tunnels, or paths under bridges are really cool too.