We've seen plenty of photos of the upcoming Porsche 911 facelift and even published leaked patent images of the refreshed 2016 911 Turbo. And now our spy photographer has caught the updated 911 Targa testing. However, there's something interesting to be found here. Take a look at the two central mounted exhaust pipes. Sources tell us this could actually be a Targa GTS, and those central exhaust pipes likely indicate a turbocharged engine. The current 911 Targa, like all other 911s, is still running the naturally aspirated flat-six.

We also know that Porsche will offer a turbo flat-six in the very near future. Although the German sports car maker hasn't confirmed anything, we believe this 911 Targa is a prototype for the 2017 model. Like other facelifted 911 test mules we've seen, this one includes updated door handles, a new grille and engine lid, as well as new front bumpers with active air ducts. The first facelifted 911 (dubbed the 992) will debut this March in Geneva.