I found this post from Muscle Car Blog News to be pretty informative:
Cragar , the wheel manufacturer of old, is launching their newest product line' Cragar's Special Edition 06 Ford Mustang GT' Ford's retro styling is the perfect base model to go with Cragar's famous muscle car and drag racing heritage' Included with each Special Edition Ford Mustang is a performance brake kit, 20×10 wheels, cat-back exhaust, and an old-school styling package that will have you begging for more'

Found at: Muscle Car Blog News