Having the wallet continuously keep poking me in the lower back is an issue in nearly every vehicle I drive. So I started wearing cargo pants or cargo shorts whenever I drive any extended distances. Wallet then sits in a side pocket at all times. The cargo pants are worn even on business travel. Sitting in economy with a wallet in the back pocket is also a PITA!

And I do prop my legs up every once in awhile to just get some movement. Using the cruise without a lot of traffic around, lets me even prop up the right leg for a bit.

And I've never had any back pain from driving the Crossfire or anything else. Most of my pain now is associated with my age and not having the flexibility I once had when getting in or out of these cars. HAH!