Twin Nissan subcompact sports coupes debuted during 1991, replacing the Pulsar NX. Built on the same front-drive chassis as the Sentra sedan, they came only in a 2-door hatchback body style. Two engines were available. The NX 2000 carried a 140-horsepower, twin-cam 2.0-liter 4-cylinder, also found in the sporty Sentra SE-R and the Infiniti G20 sedan. The NX 1600 borrowed the Sentra's 110-horsepower, 1.6-liter four. A 5-speed manual transmission was standard, with 4-speed automatic optional on both models. In addition to a larger engine, the NX 2000 got a firmer sport suspension, bigger wheels and tires, rear disc brakes, and a viscous limited-slip differential. A rear spoiler and fog lights were standard, rather than optional as on the NX 1600. A T-bar roof was optional only on the NX 2000. Antilock braking was available only on the manual-shift NX 2000, but both models had a driver-side airbag.