I always tread with care when reading CR reviews. There are other metrics involved. For one, I suspect the owners surveyed are driving relatively new models. My understanding from numerous prior discussions is that some German Engineered products (BMW specifically) turn out to be money pits as they age especially with electrical system problems. I also suspect that luxury car owners are less likely to own their cars for as long as "common person" brands like Chevrolet, so they are less likely to experience costly repairs. Then again, BMW may certainly have made dramatic improvements in the long-term reliability of their products in recent years.