Italy has been celebrating the 150th anniversary of its unification all throughout 2011. In the past 11 months, a number of Italian automakers have paid homage to this special year, including Ferrari, which christened their 2011 Formula One race car as the "150° Italia". Ferrari’s biggest rival, Lamborghini, also paid tribute to the occasion with the release of the 2011 Lamborghini Gallardo Tricolore. At the 2011 Bologna Motor Show, Maserati unveiled their celebratory vehicle in the form of the GranTurismo S Limited Edition.The most unique feature of this special edition car is the Sebring Blue paint finish, but it also comes with certain carbon fiber elements to make it stand out. Elements such as the front and rear spoilers, the side mirrors, and the door handles highlight the blue finish, while polished aluminum calipers, side skirts, headlights, and a new set of 20" alloy wheels round out the exterior details of the special edition GranTurismo S.As for the interior, Maserati added a carbon trim for the instrumentation, particularly on the center console and dashboard. Additionally, there’s also a tradition commemorative plaque that highlights its tribute to Italy’s 150th unification anniversary, complete with the official number of the model.On the technical side, Maserati has yet to announce whether the GranTurismo S Limited Edition received performance modifications. Nevertheless, the sports car still carries a pretty impressive 4.7-liter V8 engine that produces 440 horsepower, mated to an electro-actuated MC-Shift manual transmission. This setup is good enough to post a 0-62 mph time of just 4.9 seconds with a top speed of 183 mph.Maserati will only be releasing 12 models of the GranTurismo S Limited Edition, which means that you’re going to have to strike early to score one.