The Cayman GT4 was a storming success for Porsche, and work is well underway on its second generation that is based on the latest 718 Cayman.

Filmed here testing at the Nurburgring, it is pretty obvious that Porsche isn’t messing about with its latest track-tuned sports car. Not only does the 718 Cayman GT4 look even more impressive than the first-generation model, but it’s also bound to be quicker and sounds even better.

Information about the new Cayman GT4 is limited, but according to reports it will feature either a 3.8- or 4.0-liter flat-six. No matter its capacity, it will be a naturally aspirated unit, in stark contrast to lesser 718 Cayman and Boxster models that come with turbocharged engines. The vehicle’s 911 GT3-sourced mill will allegedly be de-tuned to roughly 420 hp so as not to tread on its bigger, and more expensive, sibling’s toes.

The Cayman GT4 will initially be sold exclusively with a six-speed manual transmission that features an automatic rev-matching function, which is what this prototype seems to be sporting. For buyers who aren’t hell-bent on a stick shift, Porsche will also offer a PDK transmission at some stage. Like its predecessor (and all 718s, for that matter), power will be sent exclusively to the rear wheels.

Not only will the Cayman GT4 have more power than all other Cayman variants, it will also weigh less, as it could drop as much as 110 lbs (50 kg) of weight. This should allow it to hit 62 mph (100 km/h) in approximately 4 seconds and max out at 185 mph (297 km/h).

Porsche is expected to unveil its new hardcore sports car at the Goodwood Festival of Speed in July.