Does the Prius V sunroof open to the air?

Then what is the benefit. (beyond marketing appeal) What are they useful for?

On an ECO oriented car, doesn't it add more weight? And reduced headroom? Wind noise? Water intrusion potential? Complexity with the power operated aspect?

I don't get it on a family oriented car.

 

It doesn't open, how would it make wind noise? And it has zero impact on headroom or anything else. Difference in weight might be a pound or two. They are windows with a fancy name. Does anyone really need to explain windows?

 

As the owner of a similar v, who is also distressed by the design of this particular feature, I offer my own experience. I would also like a window that would open, but understand the roof's aerodynamic design and it's contribution to gas mileage is the primary factor here. My major complaint is that in my climate and altitude, the moonroof is, essentially, useless during any season when the vehicle is exposed to direct sunlight. The fact that the roof does not open is of little functional concern. My problem is heat and UV radiation which makes the interior almost unbearable when exposed to direct sunlight at altitudes above 6,000 ft. This exposure could certainly be mitigated if it was possible to install a suitable heat/UV reflective window tint on the moonroof. Sadly, because it is plastic and will always emit gas when heated, this is impossible because the tint material would quickly bubble and separate. My solution: Keep the shades closed virtually any time when I would be most likely to enjoy having the window exposed.