A useful comparison from 5 minutes of googling:

In 2017, the top 20 car companies produced 76m vehicles [1]. There "may be as many as 2000 car companies globally".[2] This page (admittedly it seems to have been "hacked by Javanese team") says total vehicle production was about 96m.[3]

So, 1% of motor companies produce 80% of the world's cars.

Is there a reason one statistic should alarm us more than the other? Is food production different from motor car production? Should we think of farms as factories?

[1] https://en.wikipedia.org/wiki/List_of_manufacturers_by_motor...

[2] https://www.topspeed.com/cars/makes/

[3] http://www.oica.net/category/production-statistics/2017-stat...