Shit can happen (this is a bad one though), how it is managed makes quite a difference.
9 years ago my father bought a new Mercedes B-class.
Having been a truck driver for decades, he knows how to look at details. When he got the car he discovered front wheels brakes where different, on each wheel there was a different type of brake(I don't exactly recall the issue). Obviously he didn't accepted the car, Mercedes gave him a temporary car and repaired the new B-class at no cost.
9 years ago my father bought a new Mercedes B-class. Having been a truck driver for decades, he knows how to look at details. When he got the car he discovered front wheels brakes where different, on each wheel there was a different type of brake(I don't exactly recall the issue). Obviously he didn't accepted the car, Mercedes gave him a temporary car and repaired the new B-class at no cost.