In 2005 I bought a brand new Corolla. I have degenerative disc disease with all its complications (spinal osteoarthritis, stenosis (4), etc.) and the seat and ride in the Corolla was crippling me. I traded it after only two months, swallowing hard and mentally accepting the $3500 loss as a “health expense”. It truly was.
At my age, I cannot think of one friend who doesn’t need some form of booster in their car. I’ve long believed that the art of designing a comfortable seat has given way among the young seat designers to “ergonomics”, a IMHO false science that attempts to force everyone’s back into the shape it should be in rather than accommodating reality. The sarcasm is intentional. But grounded in fact. I’ve often exclaimed “what the h*** are they TEACHING these kids in design schools these days?”.
The only thing I can suggest is lots and lots of long test drives. Try to avoid making the same mistake I made.