Launched only in 2009 at the Shanghai Auto Show, the Porsche Panamera is a full-sized luxury sedan. While the introduction of this model aggravated many Porsche enthusiasts, we wanted to form our own opinion. Because, clearly, we couldn’t come to any conclusions with just one model, we had to drive two different Panameras to really experience the sedan Porsche raves about. After hopping in the 4S for a week, then slipping into the Turbo, it’s clear Porsche has something a step above the rest in the sedan market. But it’s not entirely perfect. In this video, compares the 4S and the Turbo.