This test driver has the sunroof open and the rear wing up during a motorway cruise.

Development of the next-gen Porsche 911 seems to be nearing completion, and a new video has caught a test mule cruising down the autobahn. The vehicle wears Porsche's usual black paint for development, but concealment panels appear limited to the corners of the rear bumpers. The third brake light also appears to be a placeholder part.

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This test driver isn't pushing hard and is just navigating through traffic. The sunroof is open and the active spoiler is up. The clip provides a chance to see how the taillights look when illuminated. Red LEDs extend across the entire rear. When the wing extends, the light on it takes over the duty of the third brake light. 

2019 Porsche 911 spied uncovered

Rather than the temporary third brake light on this test mule, earlier spy shots on a nearly undisguised example (above) indicate that Porsche intends to incorporate the illumination into the vent on the rear deck.

While not visible in this clip, we know that the new 911's cabin is set to get major upgrades. An analogue rev counter remains in the centre of the instrument panel, but digital displays now flank it. The centre stack is rather short, which should help outward visibility. The infotainment display is on top, with an array of chunky switches below.

2019 Porsche 911 spied uncovered

The next-generation 911's powertrain remains a mystery. It might retain the existing 3.0-litre twin-turbo flat six but with updates to boost output. Customers looking for more power can wait for the more powerful Turbo version and a more efficient hybrid model is several years away.

Speculation puts the new 911's reveal at the Paris motor show in October with sales beginning in early 2019. A multitude of variants, including the convertible, GT3 and many others will also be rolled out over the early part of the car's life cycle. 

2019 Porsche 911 spied uncovered

Gallery: 2019 Porsche 911 Camo-Free Spy Photos

Photo by: CarPix