718 Cayman S beaten by V6 F-TYPE in real-world fuel consumption tests

Porsche's recently launched 718 Cayman S has been beaten in independent fuel consumption tests by a Jaguar F-TYPE, despite boasting what's claimed to be a more efficient down-sized 2.5-litre four-cylinder turbocharged engine.

In the test, carried out by British magazine What Car, the 718 Cayman S averaged 9.9/100km - 22.2 per cent more than the official 8.1L/100km figure claimed by the car maker.

The 3.0-litre V6 Jaguar, meanwhile, returned 9.8L/100km - 16.7 per cent more than the 8.4L/100km claimed by the British car-maker.

The tests, carried out by the British mag, are said to mimic real-world conditions.

A Porsche spokesman, commenting on the result said: “The basis of any official Europe-wide Government legislated testing is the NEDC - an agreed industry standard that provides a repeatable consistent platform for cars of all types to be assessed and which intends that data is easily and accurately compared with other cars. The car industry is currently working with legislators on revising the NEDC.

“Of course, the real world will present variations based on road conditions and driving styles. It can be higher than the official standard fuel consumption, but also lower if the driver adopts an appropriate driving style.”

Porsche also pointed out the new 257kW 718 Cayman S has greater power and torque compared to the old six-cylinder version and also had lower real-word NOx than the model it replaced.

Other cars tested by the magazine included BMW's recently launched M2 coupe, which missed out on matching its official 8.5L/100km figure by just 5.9 per cent.

Worst tested was the Audi A4 3.0 TDI, which only returned 6.7L/100km - 55.8 per cent worse than the 4.3L/100km the German car-maker claims it is capable of returning under the NEDC regime.