for roof mounted I can say do not get Rhino Rack. I have a Pontiac G8 so I had pretty much no other option than the Rhino Rack roof system. The skewer and lock mechanism broke on both mounts within 6 months and I can't get replacement parts. I'm still working on fixing the problem. I might be looking for new bike trays soon, if I can find something that will work with the aero shaped bows of the Rhino Rack.