Motorcycle/tank for quick science missions in hostile terrain.
Not very fast but plenty of power: can hold its top speed of 10 m/s up some ridiculous slopes depending on the local gravity.
Gif in action here
A note about the reaction wheel: it’s set to SAS only by default, to stabilise the vehicle without rolling or pitching as you’re driving. If you want to pull a wheelie, or land it level after getting some sick air, tapping 1 twice will set the reaction wheel to ‘normal’ and give you attitude control. Hitting 1 again will set it back to SAS only.