I've found a video review of the Infiniti Q30 and even though it's not in English, there is the option to auto translate the closed captions.
Great close up view of the interior along with the touch screen. Not sure how spacious the back seats are because his knees seems to be touching the back of the driver's seat and he commented on the sloped roof line in the rear passenger seat area. Maybe taller riders will have their head touching the roof.