I have a Yakima system. Get the aluminum channels and bolt them to your hardtop (the same kind you'd bolt to a pickup shell). Cross bars can be easily mounted, moved, and removed as you need the rack, and you don't have a permanent installation that kills your mileage and degrades handling. You have a bunch of options for bikes, kayaks, skis, etc. You can also mount a cage, e.g. "Load Warrior." One caveat is that, since its bolted to the plastic hard top, you don't what to put a ton of weight up there (e.g. Roof top tent). But for large bulky items that don't weigh much, it's a great system and best of all, can easily be removed when you don't need a rack. The channels stay there but are low profile and look like an OEM feature.
