Nissan has ventured further into the world of controversy at the Frankfurt Motor Show and we have to admit we love their Gripz Concept.

While this was believed to preview a replacement for the next Nissan Z car, the vehicle actually gives us a taste of what will be an expanded Z family. While earlier this year we talked about how Nissan should turn the GT-R into a franchise, it seems the automaker has decided to go down that route using t…