2020 BMW i8 Roadster vs. 2018 Porsche 911 Convertible

Two Convertibles with some similarities, but otherwise different in most aspects such as the powertrain, starting price, model year, market segment, horsepower, fuel economy, ground shadow size, and maximum occupancy. First of all, there is a $59,900 difference in the base MSRP. The 2020 BMW i8 Roadster, a newer vehicle by two model years, has a higher starting price than the 2018 Porsche 911 Convertible. Also, the 2018 911 Convertible has a more powerful engine and gets 4.5 mpg less than the 2020 i8 Roadster. In addition, the i8 Roadster has a slightly larger body than the 911 Convertible. And then, you'll seat two more passengers in the Porsche 911 Convertible than in the BMW i8 Roadster. Among similarities are the body structure, market segment, and height.