Porsche has been launching various iterations of its 911 as of late, so it should come as no surprise that there's yet additional room in the lineup for another one. Just a few weeks before its official Detroit Auto Show debut, leaked images of patent drawings showcasing the 911 Targa have hit the web. The Targa model itself isn't anything new, but the fact that Porsche has ditched the previous generation's sliding glass roof is the big news here. Previous spy shots revealed that Porsche was ditching the glass in favor of a more retro look.

In other words, the glass will be replaced by a removable section that may even be able to slide backwards, according to previous rumors. But judging by these leaked images, it's kind of hard to imagine how something like that would work. Still, we like the overall look as it harkens back to 911s of yesteryear. Complete details are just a few weeks away.