It wasn’t until I was an adult living on the coast that I understood this and why Midwestern auto shops were so resistant to foreign cars. This process was still in development, and so while one set of brake assembly might fit twenty Chevy and Ford vehicles over a five model year period, you were always having to special order parts for the “weird” cars because you couldn’t keep them in inventory, and so you had to deal with a hostile customer who didn’t understand why their wife’s car got brakes in one day and the Subaru was going to take a week. They storm off to another shop and get the same answer.