Porsche CEO Wendelin Wiedeking has confirmed that the Cayenne will feature a diesel engine option and arrive sometime in 2010.

The diesel unit is expected to be dropped into the Cayenne unchanged from its Audi Q7 origins so that means the 3.0-litre V6 TDI derv unit will have around 240bhp and 540Nm of torque.

In addition to this the money that Porsche has saved in buying-in an engine is reportedly being put into a hybrid system that could see duty on the Cayenne in around 2010.