Yes, there are a few HPDE organizations here in the Valley. Pro Auto, NASA and Hooked on Driving all do events at the local tracks which are Az Motorsports Park (Goodyear), Firebird Raceway(Ahwatukee), Podium Club at Attesa (Casa Grande) and Inde Motorsports (Wilcox). I run a modified C5 Z06 with Pro Auto and I'm having a blast! Season starts Oct 5-6 at Firebird East Track. You should come check it out. Free to watch and socialize.