Two Convertibles with some similarities, but otherwise different in most aspects such as the model year, starting price, ground shadow size, horsepower, height, and maximum occupancy. First of all, there is a notable difference in the starting price of the 2013 Mazda MX-5 Miata, which is $9,345 less than the base MSRP of the 2016 Buick Cascada, which is three model years newer. Also, the 2016 Cascada pulls more horsepower than the 2013 MX-5 Miata. In addition, the Cascada body is significantly larger than the MX-5 Miata, and in addition to that, it's also slightly taller. And finally, the Buick Cascada seats two more passengers than the Mazda MX-5 Miata. Among similarities are the body structure and fuel economy.