I was just thinkng.... this stuff might be GREAT for those of us with roof racks that 1. we actually use fairly often and 2. are difficult to remove (taking off my cross bars necessitates removing the entire rack)
If this stuff sticks well enough, it could be stretched from the windshield to the rear hatch, over the top of the cross bars.... encapsulating them and possibly reducing/eliminating their drag.
Time for some testing