Two Convertibles with some similarities, but otherwise different in most aspects such as the height, model year, horsepower, fuel economy, ground shadow size, and maximum occupancy. First of all, the 2016 Beetle Convertible has a more powerful engine than the 2014 MX-5 Miata, but it gets 3 more miles on a gallon of fuel. Also, the MX-5 Miata is both slightly smaller and significantly shorter than the Beetle Convertible. In addition, you'll seat two more passengers in the Volkswagen Beetle Convertible than in the Mazda MX-5 Miata. Among similarities are the body structure, market segment, and starting price.