I bought a 2003 Dodge Caravan because it had the most comfortable seat I had ever sat in. It had a layer of Memory Foam just below the surface. You might try a pad of 1" Memory form, and if it works, have the seat bottoms redone. I bought a new seat bottom and cushion from Byers as a replacement in the future, but I am thinking about putting the memory foam in as a trial myself, only for comfort.
