From what I've read, from a visit and tour of the factory in 1964, by examining the work on the car, (and maybe a little wishful thinking,) I believe much of the final "details" were hand done.
Seat Covers were produced on a machine but the final fitting and stapling was hand done; the aluminum parts (doors, hood, trunk lid) were machine stamped oversize with final fitting by hand ending with hand grinding; the wood trim was finished, polished, and fitted by hand.
I watched seats being installed by a "man" who fitted and tightened each into place. I believe the inside trim was final-trimmed and hand fitted into place.
Of course, men were swarming all over the cars as they moved slowly down the line, guiding the engine in, attaching the hoses, electrical, fitting the windshield. Not sure if this is considered "hand made" or just that they didn't have machines to all the steps.
There is still some 'hand work' done on today's cars but it's mostly smoothing out the work done by the welding robots or the paint machine.
Richard M, NYC
Highest 113 production was 1969, about 8,000 cars or 21 per day. Other model cars were rolling along the factory line at the same time but still few enough to do a lot of hand work.
