Probably going to have a hard time finding something specifically for the iA for a bit, as the car is still a new model. There are some universal roof racks that might work.
Suggest a hitch rack w 1 1/4 inch hitch. Have it setup on my iA with a fold up Yakima rack that works well for two bikes. Loss of mpg is not noticeable whereas roof bike racks can cost 5 mpg.
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