Russian tuning house TopCar has just revealed its first Panamera Stingray GTR in the US, which debuted at a private event at Atlanta Motorsports Park. Only 25 of these cars will be built, each with its own set of unique characteristics. We previously saw a blue and carbon-black model at the Top Marques Monaco 2012, and this particular model comes with similar aftermarket styling. That includes a host of carbon-fiber and Kevlar components including a front and rear bumper set, new hood, front & rear fender extenders and new side skirts.

A new interior consists of carbon-fiber accents and plenty of Nappa leather, while mechanical improvements including a new sports air filter, intake manifold, and motronik & valved exhaust system, increases power output to 600hp and, with further modifications, onto 700hp.