So I decided after about 20 years to pull out our old Saris Bones Bike Rack, which I used many years ago on our Audi. I mounted it up on the Model 3 after cleaning it. When I owned our Audi, I was never as careful as I am now about our car paint, and I was curious if anyone experienced chaffing between the Rubber soles and the surface of their paint? I'm going to take it out today as a test, but left Microfiber cloth between the rubber feet and the car surface. Here are two photos. I'm hoping the rack won't move around too much, but its secured fairly tightly with the six retaining straps & I'll probably reposition and cut the towels down to size next time I use them.