This is a corporate culture issue, which has continued this tradition, just like Nokia has always used Symbian. Moreover, sunroofs are patented. Webasto has more than 60 sunroof patents and its market share in the field of automotive sunroofs is as high as 65%. These companies also want to keep all their cars patented.
For example, the reason why Bentley does not have a sunroof is that Bentley’s body uses a super-plastic molding technology. Before it becomes a body, it is just a steel plate. The bottom is pressed by a machine, and its body is integrated from the front fender to the rear fender. Another reason is that since it is a luxury car, it must have its history, and the things it inherits must withstand the years, so it can reach the ranks of luxury cars.
Why there is no sunroof cannot be due to cost issues or technical issues. Since they have become the top cars in the luxury class, don’t you have the money to find good technicians to make things well? The reporter said that the technicians in luxury cars come from generations, from their great-grandfather, grandfather, and father, and they are all from here. Otherwise, it is called a car culture.
The reason why Ghost has a sunroof is because after the separation of Bentley and Rolls in 2003, Rolls' production line was no longer in Crewe, Rolls moved, and Rolls' things were almost the same. It's all electronic equipment.