if you want to know more about the Prius V, this video will help you out.
In the video you will learn that the Prius V does come with a 3rd row seat in Europe and Japan. Hopefully later on the option for a 3rd row seat does become available.
so from what im hearing from the video, the Prius V doesn't have a real sunroof but just panels that slide away. Good idea to save weight, but bad idea since a lot of people like to OPEN the sunroof and not just let light in.