[schuke]

I often think about it too. The car seems to be much more complex than a mechanical watch. The watch can perform very well without regular maintenance but car cannot. And the latter can be very dirty, with all the oil, gasoline, dirt, smell, etc. Cars run on much much more harsh conditions with lots of exposed parts , one of whose failure can lead to the car being useless. Whereas for the watch basically everything is in an enclosure. It can go for decades without the need of opening.