Contrary to earlier media speculation, this is not a smaller brother to the Cayenne tipped to carry the Roxster namesake, but rather the Cayenne itself.
Porsche boss Wendelin Wiedeking had previously been reported to use his influence over the VW Group to rush development of the shared SUV platform.
The motivation behind this is to speed up development of the Cayenne because of fears of the worsening demand for thirsty SUVs and rising oil prices.
With the current Cayenne set to flounder under these market conditions, the new model will be much more fuel-efficient and will feature a new hybrid model and a diesel in its line-up.
As a result, both the new Cayenne and Volkswagen Touareg are expected to make their debut in 2010, although a replacement for Audi's Q7 SUV isn't anticipated until 2013.