Two Coupes with some similarities, but otherwise different in most aspects such as the modifications, starting price, horsepower, fuel economy, market segment, and height. First of all, the 2017 BMW i8 is priced $149,900 lower compared to the base MSRP of the 2017 Bentley Continental Coupe Supersports. Also, the 2017 Continental Coupe Supersports has a more powerful engine than the 2017 i8, and it gets 14 fewer miles on a gallon of fuel. In addition, the Continental Coupe Supersports is slightly taller than the i8. Among similarities are the body structure, market segment, ground shadow size, and maximum occupancy.