LA motor show: Porsche Cayman

The renewal of Porsche’s sportscar line up continues apace with the unveiling of a larger and lighter second-generation Cayman at the Los Angeles motor show.

The new mid-engined coupé adopts a redesigned platform offering improved weight distribution as well as a series of weight saving measures that are claimed to result in a lighter car than its predecessor.

Sister car to the Boxster, which it will be built with at Porsche’s Zuffenhausen factory (and eventually the old Karmann factory in Osnabruck), the new Cayman receives slightly different proportions in a move that serves to stretch its silhouette and provide the basis for a larger cabin. Length is up by 35mm, width extends by a scant 1mm while height drops by 10mm over its predecessor at 4380mm, 1801mm and 1295mm respectively.

The Cayman once again shares its styling with the Boxster. Distinguishing features include daytime running lights and indicators housed within a round unit, more pronounced rear haunches and a heavily angled liftback style tailgate at the rear.

As with its roadster sibling, the new coupé adopts an edgier appearance than its predecessor, with tauter surfacing and crisper lines, including a distinctive swage running through the doors and into larger cooling ducts ahead of the rear wheel arches. As part of Porsche's focus on weight saving, the body is predominantly aluminium. As on all recent Porsche models, the exterior mirrors are mounted on the doors rather than within the glasshouse. The wheelhouses have also increased in size, allowing Porsche to fit the range topping Cayman S with 19 inch wheels as standard and offer 20 inch rims as an option.

Inside, there is a higher quality interior with added levels of accommodation. The two seat layout remains, but a longer cabin provides greater levels of seat adjustment and improved storage. Porsche claims 150 litres of luggage space in the nose and a further 162 litres at the rear in the space above the engine.

As with the Boxster, the new Cayman will be sold with the choice of two flat six engines: a new 2.7-litre and a reworked version of the existing 3.4-litre. Buyers will also be able to choose between two gearboxes: a standard six speed manual or a seven speed dual clutch unit, which can idle the engine and disengage the clutch on a trailing throttle for to save fuel.

The 2.7-litre unit replaces the older 2.9-litre engine, producing an added 10bhp but 7lb ft less torque, with 275bhp and 214lb ft. It is sufficient to propel the  1310kg Cayman to 62mph in 5.7sec and up to a top speed of 165mph, while delivering a combined fuel consumption of 34.5mpg and  CO2 emissions of 192g/km, with the standard six-speed gearbox.  The dual clutch gearbox extends performance and reduces consumption and emissions, with official claims of 5.4sec, 164mph, 36.7mpg and 180g/km.

It will be joined from the outset by the reworked 3.4-litre engine. It delivers 5bhp more but the same level of torque as the old unit, with 325bhp at 7400rpm and 273lb ft at 4500rpm.  This is enough to endow the 1320kg Cayman S with an official 0-62mph time of 5.0sec in six-speed manual form and 4.7sec with the dual clutch gearbox, together with corresponding top speeds of 176mph and  175mph. Fuel consumption is put at 32.1mpg and 35.3mpg respectively for the two gearboxes, with corresponding CO2 emissions of 206g/km and 188g/km.