1. Windows commonly found on aircars like the starting Airbus and the Snake seem to allow vision for shooting, but not vision for revealing parts of the map. For instance the window opposite the door on the airbus works normally but the window next to the door doesn't grant vision. Same with the side windows on the Snake.
2. If you try to install a battery overcharger on the scorpion it complains about being out of fuel as soon as it takes off. Canonically it's a hybrid with the battery powering antigravity for lift and thrust coming from chemical engines, so an overcharger wouldn't allow it to fly any faster. However there should be a more elegant way of disallowing overchargers that won't confuse the player, particularly since it does allow you to install a battery.
