Porsche adds power to its Cayman S sports car

The company has invested some money in its potent mid-level sports car, the Cayman, which debuted in 2005 as a 2006 model. Four years into the model run, Porsche has freshened the 2009 Cayman with a mild restyling of the front and rear — headlights and taillights mostly — and has added power.The base Cayman gets a larger, 2.9-liter six-cylinder engine, with 265 horsepower. And the uplevel Cayman