Great stuff. I can't see any different in the snow, but I'm on a flat planet, so I guess I need to find some canyons.
Unfortunately adding fixed acceleration increments to the SRV seems to have broken the throttle, at least using accelerate and decelerate buttons (not an axis) on a gamepad and acceleration set to "continuous". With drive assist off (which I prefer) I can't accelerate past 1 - so basically crawling forward glacially. With drive assist turned on, I can either go full throttle or stop completely, nothing in between.
Hrm, if I set throttle increments instead, it gets even worse. With drive assist on, I can only go full speed ahead or nothing. With drive assist turned off, I can't move at all.
As a temporary fix, rebinding throttle to an axis on the gamepad solves the problem. Using buttons for accelerate and decelerate seems broken.