The worst was back in the day when Chevy used some bogus primer for their trucks. They refused to say it was their fault owners paint was coming off their trucks sans any rust. A class action was started and then over the course of several years, the government and owners finally won.
What did the owners get? Coupons for $100 off a paint job at the local Chevy dealer.
So not only did the owners not get anything to help them fix their problems, they were forwarded to a local dealership where the dealership could then take advantage of them again and charge them thousands of dollars and essentially make all the money back they were paying the attorney's and government.