Two Coupes with some similarities, but otherwise different in most aspects such as the modifications, starting price, horsepower, model year, fuel economy, height, and maximum occupancy. First of all, there is a $20,500 difference in the base MSRP. The 2016 Porsche Cayman, a newer vehicle by two model years, has a higher starting price than the 2014 BMW 2 Series. Also, the 2016 Cayman has a more powerful engine than the 2014 2 Series, and it gets 6 fewer miles on a gallon of fuel. In addition, the 2 Series has a slightly taller body than the Cayman. And then, you'll seat two more passengers in the BMW 2 Series than in the Porsche Cayman. Among similarities are the body structure, market segment, and ground shadow size.