A. Ask your friend for a cushion to place behind your back.
A. Ask your friend for a cushion to place behind your back.
B. Put up with the discomfort; you should not adjust another person's seat.
C. Adjust the seat forward so it's right for you.
When you get into an unfamiliar car there are a few checks that you should do:
Some cars come with seat memories so you can always ask the owner to save their current seat position so they can recall it after you have finished.