The Nissan Altima is a mid-size car that has been manufactured by Nissan since 1992. It is currently in its sixth generation, with the most recent model being released for the 2020 model year. The Altima is available as a sedan or coupe, and offers features such as a V6 engine, a continuously variable transmission, and options for active safety features. The Altima is an attractive option for those looking for a reliable and affordable mid-size car.