Last month I bought a 2017 Model S 75D -- really love it. I still have an old cycle rack I used with my Volvo V60, and I'm exploring whether it works to use it on the Tesla. I'd be very grateful for thoughts on whether what you see in these photos seems like a good vs. bad idea. The upper hooks connect with the metal of the tailgate; they're not hooking onto the glass. But the upper rubber sections rest on the glass... Is the weight (with 2 bikes) likely to be too much for the glass?