Is it possible to add dual moonroof to an existing prius? cost? will adding somehow change the aero-dynamics?
Dual Moonroof? Do you mean the solar roof with the sunroof? Solar roof is factory built in and engineered for the roof.
Other than flattening the roof, it should be ok. You do lose a very small bit of efficiency (we did ask when the Gen 3 was offered with the solar roof, how that compared to the standard roof with the curved section and the engineer said the effect was very small).
Well there are plenty of fixed glass moonroofs, Chevrolet Malibu Maxx had a fixed rear glass moonroof over the rear passenger's heads. Land Rover Discovery (except the latest version from 2017 onwards) had a distinctive dual rear fixed glass moonroofs that curved around to the side of the car in the cargo area (over the 2 jump seats). 2004-2008 Maxima's had a fixed glass moonroof that ran down the centre of the car as standard equipment with a traditional moonroof as an option. The 2-dr Range Rover Evoque has the largest fixed glass moonroof in production.
This why I have never seen one that does not open, never been in a Malibu Maxx, Range Rover curved glass is not a moon roof and I do recall the Maxima glass elongated glass panel. But I would not call that a moon roof either. The actual definition is a transparent section of the roof of an automobile, typically tinted and able to be opened.
Also the Mitsubishi Space Gear (not sold in the US). So what would you call those then? Marketing has it described the way you did except they don't distinguish between those that are fixed, those that only tilt, those that only slide and those that tilt & slide.
I believe the marketing term for these fixed glass roofs like on the Maxima is "PANORAMIC VIEW GLASS ROOF"
That's fair, I can go with that. That's assuming there's only one (like the Evoque, Maxima and Malibu Maxx). What about dual fixed ones like the Discovery, Space Gear or some of the older Outbacks (where the front only tilts and the rear only slides).
