HD Matrix Headlights

[babylou66]

Just an FYI per ChatGPT:

Roof type	Net added weight
Small sliding sunroof	~10–20 kg (22–44 lb)
Large panoramic fixed glass roof	~25–35 kg (55–77 lb)
Panoramic opening roof (two panels)	~30–50 kg (66–110 lb)

 

[Moheisen(FirstEV)]

Just an FYI per ChatGPT:

Roof type	Net added weight
Small sliding sunroof	~10–20 kg (22–44 lb)
Large panoramic fixed glass roof	~25–35 kg (55–77 lb)
Panoramic opening roof (two panels)	~30–50 kg (66–110 lb)

So, the panoramic roof adds less than 1% to the total weight then? Even if that’s the case, the aluminum (or whatever material it is) section of the roof that gets removed to make space for the panoramic roof would already weigh around 10–15 kg. In practice, that means the net increase is probably only about 10–20 kg, which is pretty negligible in the context of the whole car.

 

[babylou66]

Those numbers already account for the material removed thus it is stated as "net". Here's a larger cut and paste:

Net weight added vs a solid roof

You also have to subtract the sheet-metal roof panel that would otherwise be there. That panel typically weighs ~8–12 kg (18–26 lb).


So the net added mass is usually:

Roof type	Net added weight
Small sliding sunroof	~10–20 kg (22–44 lb)
Large panoramic fixed glass roof	~25–35 kg (55–77 lb)
Panoramic opening roof (two panels)	~30–50 kg (66–110 lb)