Sun roofs are common today on most make and models and certainly for the BMW 3 series. So will Tesla offer: -Optional Pano roof? -Classic sun roof? -Scaled down pano room? Perhaps something similiar to my wife's VW Jetta Sportswagen TDI with lots of glass, limited opening but without the railings since they will cause air drag. -Would definitely like to see the option to easily attach roof railing/rack which is not an option on the Model S without the pano roof. That seems like an omission which Tesla should address this time around.
My guesses: -Optional Pano roof? Yes. Why wouldn't they? They have the experience of making them work. So you stick with what you know. -Classic sun roof? No. This is an easy way for them to set themselves apart while maintaining a general appeal. -Scaled down pano roof? Maybe. Only if the full scale version doesn't work functionally. -Would definitely like to see the option to easily attach roof railing/rack which is not an option on the Model S without the pano roof. That seems like an omission which Tesla should address this time around. It's not an omission. Tesla is going for a highly aerodynamic design and roof racks create a lot of drag. Functionally they will have to come up with a way to have them but I would expect it to come on the Gen III crossover and not the sedan.
The model S with pano roof comes with 4 screw in attachment points to attach a roof rack. It is known.