Henry_b
Think outside, no box required.
Never driven anything later than a Classic, but the velour seats in mine are like armchairs, so comfortable despite my lower back problem.
Seat base cushions height variable both front & back & adjustable arm-rests (32 years ago) features I've never known on other cars.
OK they are not electric, but less to go wrong & the car won't fail a MOT on a malfunctioning driver's seat motor
Just my two pence worth chaps.
I had a 3.9 manual with velour seats and it was comfortable.
The P38 Seats are lovely and soft too.