Porsche is working on a on full second generation for the Cayenne. Don't squint too hard at the picture, we can't tell too much of a difference yet either. In true Porsche fashion, we expect its next SUV will be evolutionary rather than revolutionary.

From the spy shot it looks like the hood may have a few more angles added and the fenders may be a little more defined. Rumors also have the next Cayenne possibly borrowing a few design elements from the Panamera.

We don't have any info on the mechanical improvements, but it is suspected that Porsche will be trying to be more fuel efficient with this SUV. With only sports cars and SUVs currently on its books, Porsche may be looking to drop is average company CO2 emissions down a few notches. Although Porsche's ownership of Volkswagen will eliminate some need for better milage, Porsche is likely being extra conscious of the economic and environmental climate.

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