Suggestions on skylight layout: 1. The distance between the midpoint of the front end of the skylight top line and RP point is 80- 120mm. 2. Consider whether the arrangement of night light, front panel, front beam and ceiling is reasonable. 3. The skylight is well arranged, and the aluminum rail is more than 90mm away from the envelope of the human head, which ensures the layout space of the ceiling and the space of the pole head. 4. The gap between the glass trajectory and the car body should consider the safety value, and the gap design is not good, which is easy to cause glass explosion, which is a considerable problem. 5. Reasonable design of windshield can reduce wind noise. 6. Rationality of drainage. 7. Design of loading hole. In addition, the skylight layout has a high technical content, and these are just the general direction. There are many other requirements about the relationship between internal functional components and car body, which our own research can't explain clearly for the time being. Please continue to add experts! thank you