2005 Cadillac DeVille DHS 4dr Sedan (4.6L 8cyl 4A)
The driver's seat is extremely poorly designed. I am 5'11" and I cannot get comfortable in the seat. The seat does not rise high enough for me to see well over the dash. The back of my seat periodically folds back to a horizontal position without my desiring it to do so. This is my 5th Caddy and, by far, it is the worst I ever owned. The driver's seat belt root is too far in the midline so that when you want to strap yourself in you find that your back is laying on the belt and you have to twist yourself to get it. As an older driver (77 y.o.) this is a contortion that is uncomfortable. The gear shift indicators are too small and almost impossible to read.
Buy a Lincoln Town Car - of which I had two and they certainly were better designed.