Originally a racing vehicle for Transsyberia rally, only 26 were built.  The street version was later built to commemorate Porsche's victory in Transsyberia rally. It is a variant with the 405 hp (302 kW) direct-inject 4.8L V8 from the Cayenne GTS.  This is a full, in depth review of the interior and exterior of this new Cayenne, enjoy!