The Dodge Nitro is a five-letter S.U.V. manufactured by Dodge, a division of the American car manufacturer Fiat Chrysler Automobiles. It was first introduced in 2007 and was available in both two-wheel and four-wheel drive configurations. The Nitro was designed to be a mid-size crossover vehicle, combining the features of an SUV with the convenience of a sedan. It was equipped with a variety of features, including a 3.7-liter V6 engine, a six-speed manual transmission, and a choice of either a two- or four-door body style. The Nitro was discontinued in 2012, but it remains a popular choice among those looking for a reliable and affordable S.U.V.