What is it?
This is the business class version of the Panamera. Up until now Porsche's range of super saloons lacked the diesel engine which would make the car a viable fleet prospect, but that oversight has been corrected with the introduction of the 3.0-litre V6 engine already seen in the Cayenne Diesel.
Transferred into the Panamera the Audi-sourced lump produces 248bhp and 405lb ft of torque, but more importantly it emits 172g/km CO2 and is reportedly capable of 43.5mpg - the best fuel economy figure of any Porsche. That headline-winning statistic means that with an 80-litre fuel tank (a 100-litre version will eventually be an option) the car has a prospective range of over 745 miles.
The manufacturer is confident that promise of fewer trips to the fuel station will eventually see the diesel model account for over 50 percent of Panamera sales. The car is positioned at the base of the range with an almost identical £62k price tag to the V6 petrol. Standard spec includes leather trim, park assist, touch-screen sat nav, Porsche's vehicle tracker and an eight-speed Tiptronic automatic gearbox.