The Superstars International Series was a production-based touring car racing championship held between 2004 and 2013. It was managed by the "Superstars World of Racing SpA", SWR, a company of FG GROUP with headquarters in Rome and sanctioned by the Automobile Club d'Italia (ACI) and the Commissione Sportiva Automobilistica Italiana (CSAI). FG GROUP, led by Maurizio Flammini, is famous for having promoted the FIM World Superbike Championship from its beginnings in 1988 until its sale to Infront Sports & Media in 2007.

The Maserati Quattroporte is a four-door luxury sports sedan produced by Italian automobile manufacturer Maserati. The name translated from Italian means "four doors". The car is in it's sixth generation, with the first generation introduced in 1963.