Two Convertibles with more similarities, such as the body structure, market segment, height, and maximum occupancy, than differences, like the modifications, starting price, horsepower, fuel economy, and ground shadow size. First of all, there is a notable difference in the starting price of the 2016 Audi S5 Convertible, which is $189,000 less than the base MSRP of the 2015 Bentley Continental GT Convertible Speed. Also, the 2015 Continental GT Convertible Speed has a more powerful engine than the 2016 S5 Convertible, and it gets 6 fewer miles on a gallon of fuel. In addition, the S5 Convertible has a slightly smaller body than the Continental GT Convertible Speed. Among similarities are the body structure, market segment, height, and maximum occupancy.