[litespeedp]

There are also car seat cushion/car back cushion support items available through the orthopedic/chiropractic sources.This would be a first step before addressing the replacement of the actual car seat.

Physical and occupational therapy people are a great source and they have catalogs.

Companies that customize vehicles for disabled drivers are a source.That sounds extreme;but they surely have some seat tricks for folks that only need a small amount of help too.

Good luck!