I like the steering angle gauge, helps when your going through mud and telling what direction the wheels are pointed without looking out the window can be pretty arbitrary.
the land rover LR3 already has that, except it includes ride high indicator, what mode is selected (sand, gravel, snow, mud, etc), where the power is going, what wheels have traction, etc.
its a pretty cool system.
Tercel 4WD "POWER WAGOON" with 4A-C
aka: "no powa steering tercel, oh oh oh!"
mods: ignition at 10 DBTDC and 90 octane gas.