The Maserati GranTurismo S Limited Edition isn’t the only exclusive Maserati that has come out this week. Joining the sports car in the fold is this luxurious Maserati GranCabrio Sport Poltrona Frau.We understand your curiosity about the Poltrona Frau name because we’ve never heard of it either until now. Turns out, Poltrona Frau is an Italian interior and furniture design and leather upholstery company that has had a partnership with Maserati since 2001. To celebrate the 10th year anniversary of the two companies’ partnership, Poltrona Frau customized the GranCabrio Sport’s interior with a special leather treatment that touches on soft, luxurious comfort. As if the GranCabrio Sport needed any more luxurious touch-ups.On top of the finely-dressed interior, the GranCabrio Sport also has a minor performance improvement from the standard version, courtesy of a faster and more fuel efficient MC Auto Shift transmission. As a result, the GranCabrio Sport’s 4.7-liter V8 engine now produces 450 horsepower, an increase of 10 ponies from the standard model. The result is 0-62 mph acceleration time of 5.2 seconds with a top speed of 177 mph.