Help with rental cars with the most comfortable seats – mainly lower back support

Hi, I am planning a trip to Nagoya and the surrounding region so I've decided to rent a car but I have no clue what car I should be aiming for if I have to potentially drive long distances and have had bad experiences in the past with cars that have awful seats with even moderate duration.

Any advice would be greatly appreciated!

EDIT:
Ended up going with a Mazda CX30, hopefully everything goes well.

Comfortable seats are REALLY damn important for long drives. Reminder to anybody going for future can rental adventures ;). Much love.

by georockman