I second the Saris recommendation. It is easy to move between my Windstar and my Saturn. I bought the rack at my LBS and probably paid less than I would have online after adding in the shipping. The feet for the Saturn came directly from Saturn and cost $8 for all four (the Saturn cycling team uses Saris racks). There is no measuring involved, since turning the knob at the end of the bar moves both feet in or out at the same time. This makes it easy to move the rack between cars, which may not matter to you if you only have one car.