But I've had experience adapting "universal" non-rain-gutter racks to strange cars.
One thing, in order to add stabilizing force to the bars, I would improvise fore-and-aft struts connecting the crossbars into a single unit. I've done this with the Yakima racks on both Accords. A unified assembly like that is much less likely to come loose.
Wall Mount Boat Racks
Bent Shaft Canoe Paddles
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