One of our regular automotive advertisers, Subaru of Dallas & Subaru of Plano, recently made the news with reports of a new online car-buying service that just about takes the hassle out of buying a car. The buying service is designed to work with all kinds of dealers, and it requires that the car be picked up at a dealership. Sounds like all of the kinks aren’t worked out, but you can see the way things are going…