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A more hardcore version of Porsche’s small sports car is on its way and our spy photographers caught the German brand testing the vehicle.

The Cayman GT4, as it is rumored to be called, will receive a power boost, but it isn’t clear how exactly that will be achieved. The current 3.4-liter flat six could be tuned for more power, or there is a possibility of the car running a turbocharged four-cylinder engine mated to a hybrid setup. Even with the bump in power, most of this car’ s performance will come from added aerodynamics and reduced weight.

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Large air intakes and an air outlet on the front end of this car mirror the Porsche 911 GT3, and give the car a more aggressive appearance compared to the standard Cayman. A massive rear wing is also fitted along with large brake calipers, cross-drilled rotors, a lower ride height and new multi-spoke wheels.

All put together, Porsche wants this car to be the most agile in the Cayman lineup. In fact, it’s certain to outperform a few of the 911s.

GALLERY: Porsche Cayman GT4 Spy Photos

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