Porsche has given the old 991-generation 911 a stunning send-off with the new Porsche 911 Speedster that debuted at the New York Auto Show with the GT3's 550-hp flat-six engine. It's probably no coincidence, then, that Porsche is preparing to unleash the all-new 911 Targa, as a prototype has been spotted for the first time by our spy photographers lapping the Nurburgring. It's virtually undisguised and finished in the same bright green as the 2020 Porsche 911 Cabriolet prototype we saw last year.

The Targa roof appears to have the same design as the 991-generation Targa, with the top edges sliding up and inwards, in order to allow the roof to retract. It's easy to tell that we're looking at the all-new new 992 Targa, however, as it sports the same styling changes as the 992 coupe and cabriolet, including new headlights, revised air intakes, new LED daytime running lights, a reshaped hood, wider fenders, and a full-width rear light bar.

Inside, expect the new 911 Targa to share the same new tech as its fixed-roof sibling, meaning it will feature a new instrument cluster, a larger 10.9-inch infotainment display, and a more angular dashboard designed as a homage to Porsche 911 models from the 1970s.

Presumably, the 2020 Porsche 911 Targa will get the same power output as the all-new Carrera's twin-turbo 3.0-liter flat-six, so expect the base version to increase from 370 hp to 380 hp and the Targa 4S to offer 444 hp instead of 414 hp. Porsche will likely reveal the new 911 Targa later this year along with the new 911 Turbo, possibly at the Frankfurt Auto Show in September one year after the new Carrera's debut. Speaking of the Turbo, rumors suggest Porsche could revive the 911 Targa Turbo for the first time since the 1980s.