A reputable window tint shop in Austin wrote the following about the difficulty in tinting the rear window: Tesla Model 3 is the " unicorn of tint jobs." Tinting your very large, non hatch back, rear windshield requires the use of 60" film to achieve a seamless one piece job. (We have been one piecing the Tesla Model X front windshield in Air90, which looks very similar to your rear windshield.) There is also electronics in the rear sides that needs to be protected from water exposure. This requires disassembly/reassembly of the rear section to towel protect those components. Has anyone seen an issue with water getting into the electronics when having film applied to the rear window, if the shop doesn't do this? I'm guessing this isn't commonly done.