This is an interesting comparison test between the new generation 2013 Porsche Cayman and the BMW M235i. The 2013 Porsche Cayman is powered by a 275 hp 2.7-litre 6-cylinder engine and it is capable of getting from zero to 62 mph (100 km/h) in 5.4 seconds. The BMW M235i comes with a 3.0-liter twin-turbo engine that's rated with an output of 322 hp. The M235i Bimmer requires 4.8 seconds for the trip from zero to 62 mph (100 km/h).