What Might Have Been: The 2016 Mazda MX-5 Miata Meets Its 367-Horsepower Grandfather Published on September 25, 2015 in Comparative Tests by Benjamin Hunting Photo: Benjamin Hunting There's also an extra forward cog in the 2016's six-speed manual transmission, besting the five-speed box (sourced from an RX-7) found in the older car.