Two Sedans with some similarities, but otherwise different in most aspects such as the modifications, starting price, horsepower, fuel economy, ground shadow size, and height. First of all, there is a $190,100 difference in the base MSRP. The 2017 Bentley Flying Spur W12 S has a higher starting price than the 2017 Audi RS 3. Also, the 2017 Flying Spur W12 S has bigger and thirstier engine; the 2017 RS 3 gets 7 more mpg. In addition, not only RS 3 is significantly smaller, but it's also slightly shorter than the Flying Spur W12 S. Among similarities are the body structure, market segment, and maximum occupancy.