The Mazda MX-5, also known as Miata in North America and Roadster in Japan, is a sports car built by Mazda in Hiroshima, Japan, since 1989. Its introduction was a significant development in the motor car industry that revived the roadster segment of sports cars, with other companies promptly introducing roadsters to their model ranges, such as the MG F, and the third-generation Toyota MR2.There have been three generations of the MX-5, consisting of major stylistic and mechanical upgrades. The first generation, designated NA, sold over 400,000 units. It was produced from 1989 to 1993 with a 1.6-liter straight-4 engine, and from 1994-1997 with a 1.8-liter engine. The NA can be recognized by its distinctive pop-up headlights. The second generation (NB) was introduced in 1998 with a slight increase in engine power; it can be recognized by the fixed headlights, and the glass rear window.