The easy on/easy off feature of Thule & Yak raks has been pretty nice, and they have featured rather easy adaptations between vehicles... but Yak re-designs the towers every few years, and quits making parts for the older designs, so they can sell more whole tower sets ($$$), rather than just the few parts that you need to adapt your existing parts to your new car... I have a box full of old Yak parts in the basement. Now, though, they even re-designed the crossbars, so when I need to outfit the next car, I won't be able to use ANY of the old parts... which means I'm not tied to Yaks at all.
Rain gutters & hardware store parts were sure nice....