Two Convertibles with some similarities, but otherwise different in most aspects such as the starting price, horsepower, fuel economy, ground shadow size, and height. First of all, the 2015 Mazda MX-5 Miata is priced $17,850 lower compared to the base MSRP of the 2016 Nissan 370Z Convertible. Also, the 2016 370Z Convertible has a more powerful engine and gets 3.5 mpg less than the 2015 MX-5 Miata. And finally, not only MX-5 Miata is slightly smaller, but it's also shorter than the 370Z Convertible. Among similarities are the body structure, market segment, and maximum occupancy.