From Porsche press: The Cayman is powered by a 245-horsepower horizontally opposed six-cylinder engine. With Motronic® engine controls and Porsche's VarioCam Plus to monitor and adjust intake-valve timing and lift, the 2.7-liter engine develops 201 lb.-ft. of torque, and when mated to the standard- equipment five-speed manual gearbox, propels the Cayman from zero to 60 mph in 5.8 seconds, and to its track proven top speed of 160 mph (258 kmph). Equally impressive is the car's 20 city/29 highway mpg fuel economy rating and its certification as an Ultra Low Emissions Vehicle (ULEV).
Optionally, the Cayman can also be equipped with either the six-speed manual gearbox of the Cayman S or the Porsche driver-shiftable Tiptronic S automatic transmission.
At 172.1 inches (4372 mm) long, the Cayman sits between the slightly smaller (about 0.5 inch) Boxster and the larger (by 3.5 inches) 911 Carrera. The Cayman is also 0.5 inch taller than the Boxster though both models are 70.9 inches (1801 mm) wide. Critical to their agility, both Cayman and Cayman S share a 95.1-inch (2415-mm) wheelbase.
The front decklid sweeps up between the strongly rounded front fenders to the windshield. The fenders house projector beam headlamps. (Bi-Xenon® headlamps are available as an option.) In the rear, the taillamps are wide and cut into the quarter panels.