On long car trips, in every car I've owned, I've always balanced one arm on top of the steering wheel with the other on the armrest bracing it from sudden turning. I can only get away with that when I don't expect to have to be doing more than a leisurely, well-considered lane change, and when the car is in good condition (which the 300d isn't right now). These conditions are pretty much never the case anymore.
The rest of the time I've taken to the standard 10&2 position because there are enough incompetent, distracted drivers out there that maximum steering nimbleness is now required to stay out of accidents. That's not terribly restful because I'm tall, but at least the weight of each arm can balance, so it's not too bad.
Life would be sooo much easier if I could just drive for the other drivers on the road around me as well
