I have used a Yakima (made in California) roof rack since 1988. The bikes arrive safe and sound every time. The benefit of a Yakima - or Thule style system is its expandability. You can add many more bike mounts, storage boxes (Yakima Space Case, etc.) ski holders, kayak holders, canoe holders, baskets, tandem mounting devices, etc. Yes, a wind deflector is a good idea but Yakima makes this little faring that slides in the center of the front cross bar that works too. The comment about gettng locking bike mounts is a good one - do it for peace of mind. The only way that I would go with a trunk mount would be if it were the type that fit into a tow hitch reciever (box mount) and if I had shoulder problems and could not lift my bike up onto the roof. BTW, if you go with a roof mound, invest the $25 in a bike bra. It will keep the bugs and other stuff off the bike. Look at your windshield.