Two SUVs with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, ground shadow size, cargo volume, and height. First of all, the 2018 Audi Q5 is priced $187,600 lower compared to the base MSRP of the 2017 Bentley Bentayga. Also, the 2017 Bentayga has bigger and thirstier engine; the 2018 Q5 gets 10 more mpg. In addition, the Q5 is both significantly smaller and slightly shorter than the Bentayga. And finally, the Audi Q5 fits 9.7 ft² more cargo behind second-row seats. Among similarities are the body structure, market segment, and maximum occupancy.