Two Coupes with some similarities, but otherwise different in most aspects such as the horsepower, starting price, fuel economy, ground shadow size, height, and maximum occupancy. First of all, the 2016 Porsche Cayman is priced $9,800 lower compared to the base MSRP of the 2015 Lexus RC F. Also, the 2015 RC F has a more powerful engine and gets 3 mpg less than the 2016 Cayman. In addition, not only RC F is slightly larger, but it's also taller than the Cayman. And finally, the Lexus RC F seats two more passengers than the Porsche Cayman. Among similarities are the body structure and market segment.