Lack of fuel or damage makes AWD and Diff lock toggle redundant

[Arbus Arbus]

This is a pretty small thing but IMO there is no reason not to have AWD and Diff lock on all the time if they're available on the vehicle. There are zero downsides currently to have them on which makes having the toggle silly.

[CMDR Sweeper]

If they improve the vehicle handling, there would be a drastic difference in handling and cornering ability with locked diffs and AWD vs 2WD.
But a lot of the vehicles force you into AWD and locked diffs as well, where you can't disable them.