More than just a Boxster with a roof, the Porsche Cayman presents a pure driving experience for performance fanatics eager to sample its mid-engine splendor. Motivated by either a 2.7-liter flat-six (275 horsepower) or a larger 3.4-liter unit (325 horses), the Cayman's chassis is a willing co-conspirator when tackling corners at triple-digit speeds. When equipped with its seven-speed dual-clutch automated manual transmission, the Cayman S requires only 4.5 seconds to reach 100 km/h.