Our black Gravity PPF installation is "wrapping up" this week, so to say. Xpel has now released templates for all the panels, and the installer says this job is going a good bit faster than the green Gravity wrap which required custom cutting.
After hesitating, we decided to go ahead with windshield protection film on this car as well as the first car. The reason for the hesitation was some distracting distortion in the film on the first car. I initially attributed it to the installer, but upon further digging through reviews and internet videos, I found it to be a common problem -- although less with this new soft film from Xpel than with older, more rigid products from other film producers. (The Stek website warns you to expect distortion with their windshield protection film and actually says it's not a product for most everyday drivers.)
Apparently the Xpel distortion is more pronounced on some cars than on others, due both to the slopes of the windshields and optical interaction with the middle lamination film in the windshields. The Gravity has a pretty steep windshield slope and maybe a windshield laminate that is not the best combo with the Xpel film.
However, as we live near sand quarries and encounter convoys of dump trucks, we went ahead with the windshield protection. In direct sunlight our Air windshield looks as if it's been through a sandblaster, and I'd like to avoid that in the Gravities even at the cost of some distortion which we're mostly getting used to. If it becomes too annoying, the film is easily removed (as it doesn't last as long as the paint protection film and is expected to be replaced periodically).