The Nissan Altima, first introduced in 1992, is a mid-size sedan named to signify a high level of quality and performance. It has been available with various engine options, including 2.5-liter 4-cylinder and 3.5-liter V6 engines, depending on the model year and trim level. The Altima has seen multiple redesigns and updates over the years, with its global sales surpassing 5 million units by the early 2020s. Known for its blend of comfort, technology, and driving dynamics, the Altima remains a key player in the mid-size sedan market.