The shade fits nicely in the spaces it’s supposed to. Front one sits almost perfectly, there are some slight gaps in 2 corners, even after several attempts at correcting it. The rear one I only put on briefly because it flaps and makes a noise when Windows are down. Keep window up and it’s fine. Windows down, wind catches under and it flaps. I think I’ll only use the front shade regularly. The other will stay in the nice storage case, in the trunk- til it’s needed.
Overall, they do a good job of reflecting heat and keeping your dome cooler than without them but they are not a nice product for your Tesla. They feel like they belong in a Corolla or some cheap car.