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Joining in on the hybrid party, Porsche had the North American debut of the "upcoming" Cayenne hybrid at the LA Auto Show. Porsche has developed their hybrid system to be adaptable to a variety of platforms including the four-door Panamera that debuts in 2009. While the Cayenne uses nickel metal hydride battery like other current hybrids, Porsche is making some pretty fantastic claims about the capability of their system. The Cayenne hybrid can reportedly zip around at speeds of up to 75 mph on battery power alone. Although they would not say what the capacity of the battery is, it doesn't seem to be any larger than the one used in other vehicles of this type. It is unlikely the Cayenne can get up to 75 mph from a standstill on the battery. Instead it can probably shut off the engine at speed and "coast" on battery power for several miles maintaining speed. Porsche also wouldn't say specifically when the hybrid will launch, other than "by the end of the decade". Whether that means the end of 2009 or 2010 is also unclear. Porsche is targeting 26 mpg (US) on the EU combined cycle.
Related GalleryLA 2007: Porsche Cayenne Hybrid