It all depends on how discriminating the car owner is.
People that buy Buicks aren’t as picky as people that buy Porsches.
When a Buick owner fills out the survey he is probably grinning from ear to ear about his new ride no matter how big of a hunk of shit it is.
If there is any little problem with a Porsche, the owner is more likely to rip Porsche a new one in the survey.