Upholstery consisting of seats and moving cushions.
Isetta was a microcar produced first in Italy and then in Germany by BMW.
Its peculiarity was to have access to the steering from the front of the car, by folding the steering wheel forward.
The car had space for a single seat for two people, which actually looked like a small sofa.
Hence the inspiration for the seams on the seat of the 1950s automotive-style sofa.