With an actual pair of rear seats and discernible leg room to go with them, the 2012 Nissan GT-R is somewhat of an oddity among supercars. Sure, the Porsche 911 has a pair of rear buckets--really, really small buckets--but the GT-R's are more usable, and nothing as fast as it can say the same.
In front, the GT-R has wide, comfortable sport seats that are up in Corvette territory, for their ample size. They're power-adjustable, too, and wear perforated leather that's like the rest of the interior, stark and functional.
The GT-R's interior is notable in that way. Also like the Corvette, it's less of a supercar experience in the plastics and textures used to cover the go-fast parts. There aren't any machine-turned metal trim pieces, no wood to relieve the cockpit's drabness, but there is carbon-fiber trim and some red contrast on Black Edition cars. If you consider its race-ready credentials, the interior's actually a pretty plush place.
In back, those rear seats aren't surrounded by expansive space, but two kids will be fine back there. Mostly, it's the sharply sloping roof and the sliver of leg room that limits it as an adult-free zone. Many slower machines--the Audi R8, the 458 Italia, the Bugatti Veyron--don't have the token gestures at all. The GT-R also has a trunk that will swallow a suit bag and a roll-aboard, and deep cupholders nest in the center console.
The GT-R also doesn't make much of an effort to quell ride, tire and transmission noise. The automated manual clacks and clamps all the time, making the decent Bose audio system an afterthought at times.