The two cars feature mildly (very mildly) tweaked styling, the twin-clutch gearbox from the and a fuel-efficient new evolution of its 2.9-litre flat-six engine.

Porsche has unveiled the revised Boxster and Cayman in advance of their public debut at the upcoming LA show.

The two cars feature mildly (very mildly) tweaked styling, the twin-clutch gearbox from the 911 and a fuel-efficient new evolution of its 2.9-litre flat-six engine.

Entry level Boxsters have a 255bhp unit while the Cayman a 265bhp engine. S-badged get the 3.4-litre engine, and deliver a 911-threatening 310bhp and 320bhp. Prices are upped by £1250 – and launch in Europe is expected in February 2009. The Boxster range kicks off at £34,420 and tops out at £45,050 for the Cayman S.

The Panamerica four-door will be unveled on November 24.