> Tesla is an outlier in that the car is designed only with a glass roof. It's not a hole in the existing roof panel like other cars.
Lots of cars have followed Tesla's lead: Ioniq 5, Mach E, etc.
I'm claiming that Tesla is an outlier in that they're not giving a choice. With the Ioniq 5 and Mach E, you can choose whether you want the glass roof or not.