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 notable difference in the starting price of the 2018 Audi S3, which is $161,350 less than the base MSRP of the 2018 Bentley Flying Spur V8 S. Also, the 2018 Flying Spur V8 S has a more powerful engine than the 2018 S3, and it gets 9 fewer miles on a gallon of fuel. In addition, the S3 body is significantly smaller than the Flying Spur V8 S, and in addition to that, it's also slightly shorter. Among similarities are the body structure, market segment, and maximum occupancy.