Long lines of cars at the service isle could also mean they sell lots of cars! Besides those warranty jobs were most likely general maintenance/service type customers as well. When I worked for a Mercedes/Volvo dealer, we'd get a line of Volvos down the street and around the corner every school holiday. Didn't mean Volvos were crappy, just that a lot of teachers bought them and they had a day off to bring them in for their oil changes.
For what it's worth...
Karl
