Really, this looks like a GT3 Touring with a roof similar to that on a 911 Cabriolet. If you look closely, you can see it's not quite the same. The back half of the convertible top has some camouflage. Based on these images, it looks like it attaches in the same way as the upcoming Porsche 718 Boxster Spyder. Beyond the roof, the Speedster swipes the bumpers and wheels from the GT3 parts bin. We're hoping it has the car's slick manual transmission, too.
Expect to see the 911 Speedster's debut sometime this fall. If you want one, you should be making calls to your local dealer ASAP. The last model was limited to just 356 examples. We expect the new one to be in similar short supply.