Porsche used the Boxster platform as the basis for the Cayman coupe. Power comes from a mid-mounted horizontally-opposed six-cylinder engine. The Cayman S is the higher-performance version, placing it between the Boxster and 911 in terms of price and performance. Both five- and six-speed manuals are available; a five-speed Tiptronic automatic optional. The fixed-roof coupe seats two passengers and uses a hatchback design that allows for more rear storage than the Boxster. Like the Boxster, the Cayman also has a front trunk.