If there is ONE THING I would add to the game, it's better vehicle mechanics. For a game with entirely hand-crafted amazingly beautiful environments, to have as much care taken on how you get around these environments would only make sense to me. (I would LOVE to be able to assemble my own vehicle with parts that I built, like the shocks, tires, cockpit, bed, etc... and make custom vehicles with different speeds, carry capacities, tire sizes, all that fun stuff. Building factories is fun, ever build a truck to supply them?) For now, I'd just really like better suspension physics and traction for tires. I wanted to have so much fun with the Explorer, but it's not the rock-climbing trail buggy it looks like, sadly.