Nissan showed off a stylish new concept car to the assembled crowds of media at the Beijing Motor Show. The Lannia Concept is... well, it's not that easy to describe. It's kind of a sedan, only it looks a bit like a fastback from the rear. But for a twist, it has an ever-so-small rear deck. Regardless of how we'd classify it, it's a seriously sharp piece of styling, thanks to its unique shape and flowing character lines.