Porsche tuner TopCar Design has added its own special touch to the already incredible Porsche Panamera 971.

TopCar focuses specifically on Porsches from 2004 on, and the Miami-based tuner couldn’t resist putting its own performance stamp on a new Panamera. The result is a striking special edition dubbed the Porsche Stingray GTR. The photos below are of example three, but TopCar will work with customers to make dreams come true.  Individuals can add a number of custom elements to design their own ideal Stingray.

For this supercar kit, the tuner took the already bold and aggressive vehicle and added a number of new components: a large rear bumper diffuser, a spoiler with vertical fins, and several new air intakes and exits. While the general feel of the original luxury coupe has been maintained, this Stingray GTR is in a class all its own.

The Stingray GTR includes a great deal of carbon-fiber; much of the kit is comprised of carbon-fiber pieces. The interior was also souped up with carbon and custom elements, like quilted-pattern seats and sharks stitched onto the headrests.

Even though the exterior and cosmetic updates are the most visible, TopCar also made adjustments under the hood, so the Stingray now boasts an output of 650 hp, up from 542 hp.

Only 25 examples of the specially tuned Porsche will be available, at $278,000.