Porsche will introduce its first ever diesel-powered car in February.

It has borrowed the 3.0-litre V6 turbodiesel from the Audi Q7 to add to its Cayenne SUV range.

With a six-speed Tiptronic S gearbox as standard, the car achieves 30.4mpg on the combined cycle and 244g/km CO2.

The Cayenne diesel will be priced from £40,250.