I had never thought of the problem of back pain thru injury and comfortable car seats. I wonder if any of the prosthetics manufacturers have? Perhaps there is something out there that is near infinitly adjustable that fits a few generic seat dinensions that may be transferable from a limited range of vehicles?

But it is amazing of how the number of comfortable car seats has actually dwindled over the years.....I wonder if it's safety related or what?(too many design constraints limiting the available options?)

With an increase in ergonomics development you'd think there would be a corresponding increase in seating comfort