I've got to side with hugetime on this one. It's obvious that you can't tow with a BMW, but still the American carmakers have a lot to learn. (And I even drive a Ford Excursion.)
My wife's last car was a Saab. That dealer bent over backwards to make us happy anytime the car was there for service, which was very rare. They actually ASKED us what kind of loaner we wanted. Going to the beach? Take a convertible. Got some stuff to carry? Take a wagon. I thought it was pretty nice of them, especially considering that both the wagon and the convertible cost more than the 9.3 four door we had.
Take your Chevy truck in for service, and ask them for a loaner C5 convertible. Tell me how loud they laugh.