New Porsche Cayenne will debut August 29
 

http://img-s-msn-com.akamaized.net/t...6&q=60&o=f&l=fPorsche has confirmed the third-generation Cayenne will debut on August 29. Until then, the automaker is previewing its luxury SUV in a new video showing it weather testing all over the world. The new Cayenne has endured temperatures greater than 122-degrees Fahrenheit trekking through the sand dunes of Dubai and the slopes of Death Valley. It

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