Porsche Cayman leaked

It's a Porsche double-whammy! Thanks to images that were leaked onto the internet when they appeared on Porsche's online car configurator, Auto Express can bring you the facelifted versions of the Cayman and Boxster.

Set to go on sale next year, the new models get subtly tweaked exteriors with restyled headlights, new air intakes and sleek LED tail lights. However, under the skin, there are bigger changes.

Out goes the old 2.7-litre flat-six cylinder engine and in comes a new 2.9-litre unit with 265hp and 300Nm of torque, up 20hp and 27Nm over its predecessor. As a result, expect a 0-62mph in around six seconds for the entry-level Cayman.

A six-speed manual gearbox will be standard, but like the 911, Porsche's PDK twin-clutch gearbox will be available as an option and thanks to its snappier shift, expect a couple of tenths to be shaved off the 0-62mph time. Other options will include a limited-slip differential (LSD) for the first time too on the entry-level model.

The range-topping S models gets a 320bhp direct injection version of the new 2.9-litre engine, capable of accelerating the Cayman S from 0-62mph in 5.3 seconds, with the PDK-version hitting the benchmark in five seconds dead. Not only do these improvement result in more performance, but they also help to reduce fuel consumption and emissions too.

In addtion, expect a slightly restyled interior with new trim and upgrades to the navigation and entertainment systems.