gf has a three series that she cannot afford along with car payments and fuel costs. She can sell her car and pay off debt, drive my car free and get free fuel and if she wrecks my sd (which by the way is a very beautiful sd) at least she ruins a five thousand dollar car versus a much more expensive model. Some women (not all) are just plain clueless around mechanical issues and my gf in particular is rough on cars. My reasoning on gf driving the sd (sd may prove to be much more reliable, the verdict is still out)