Definitely a passenger! I HATE driving!!!!! I like the freedom, but not the physical action. Driving makes me anxious (my OCD perfectionism strikes again). Anxiety makes me tighten up (bodily).
A few years ago, I drove up the road to the river (not very far). It was a beautiful warm autumn day, no traffic, full tank of gas. Yet for some reason I held the steering wheel with a death grip. I gripped it so tight that my chest muscles ached for days afterward.