Two Convertibles with some similarities, but otherwise different in most aspects such as the modifications, starting price, fuel economy, horsepower, ground shadow size, and height. First of all, there is a $130,100 difference in the base MSRP. The 2017 Bentley Continental Convertible GT V8 S has a higher starting price than the 2017 Porsche 911 Convertible. Also, the 2017 Continental Convertible GT V8 S has bigger and thirstier engine; the 2017 911 Convertible gets 6 more mpg. In addition, the Continental Convertible GT V8 S body is slightly larger than the 911 Convertible, and in addition to that, it's also taller. Among similarities are the body structure, market segment, and maximum occupancy.