Inside, the 2006 Porsche Cayenne Turbo S comes loaded with equipment, including a Porsche Communication Management System with navigation and a Bose audio system breathing through 14 speakers. Interesting options include a panoramic roof, keyless locking and ignition, four-zone climate control, a rearview camera, and other goodies. In fact, you can load your new 2006 Porsche Cayenne Turbo S with so many extras that the price goes from stratospheric to ridiculous faster than the SUV reaches 60 mph.