2007-9 GT California Special includes:
• Black w/Dove or Black w/Parchment interior accented environments
• Black leather trimmed seats with unique Cal Special Dove or
Parchment "GT Leather" inserts
• Bright Rolled Exhaust Tips
• Carpeted front floor mats with unique brushed chrome "MUSTANG"
badge
• Includes 18" Polished Aluminum Wheel (64W)
• Side Scoops
• Unique Front & Rear Fascia
• Unique Tape Stripes (Black - 85X or White1 – 85W)
As you can see - no performance upgrades; it's simply cosmetic stuff. But, a very nice looking package.
I got shafted, my seats dont have the "cali special" on them, and the rear badge has the "GT" in the middle and "California Special" written around it.