Two Convertibles with some similarities, but otherwise different in most aspects such as the modifications, starting price, horsepower, fuel economy, ground shadow size, and maximum occupancy. First of all, the 2017 Audi A5 Convertible is priced $214,800 lower compared to the base MSRP of the 2016 Bentley Continental GT Convertible Speed. Also, the 2016 Continental GT Convertible Speed has a more powerful engine and gets 9 mpg less than the 2017 A5 Convertible. In addition, the body structure of A5 Convertible is slightly smaller than that of the Continental GT Convertible Speed. And then, you'll seat one more passenger in the Audi A5 Convertible than in the Bentley Continental GT Convertible Speed. Among similarities are the body structure, market segment, and height.