The Porsche 911 Turbo S is a superb performance machine, but the minds at Techart like to take things a bit further than what the Turbo S offers. In 2016, the tuner introduced the GTstreet R, a 711-bhp model with a host of visual and performance upgrades. It will have a successor, as a new batch of spy shots have captured a lightly camouflaged test vehicle parked on the streets of Stuttgart, showing off its aggressive styling to the world.

The car wears camouflage over the rear fascia and front bonnet, which is where the bulk of the tweaks hide. The coupe sports a new front bumper with improved aerodynamics thanks to a new design and new carbon-fibre flaps. The bonnet is also different, sporting large GT3-like air inlets. This will help reduce front-end lift at high speeds. Those tweaks are corralled by wider front wings/fenders, which also wear their own aggressive vents.

Gallery: Techart GTstreet R Spy Photos

The rear will get a more aggressive bumper that sits above a new diffuser, which houses a pair of massive, centre-exit exhaust pipes. The biggest change at the back, though, is the active carbon-fibre spoiler. The wide and wild wing will help improve downforce even further. The tuned 911 also wears new wheels – Formula VI Race wheels equipped with (likely) carbon-fibre aerodynamics discs. The interior of this test vehicle wasn’t modified, though the final product will likely have Techart’s touches throughout. The previous GTstreet R had sport seats, handcrafted refinements, and other tweaks.

Those new looks will also get new power. The Techart GTstreet R is expected to deliver 710 bhp (529 kilowatts) and 900 Newton-metres (1,220 pound-feet) of torque. There’s a second power stage expected to produce around 800 bhp (596 kW). Techart has scheduled a reveal, but one should happen in the coming weeks. Stay tuned.