The 2008 Dodge Nitro is available as a 4-door, 5-seat sport utility. Starting at $23,660, the 2008 Dodge Nitro SLT/RT 4x2 is powered by a 3.7L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway. The top of the line 2008 Dodge Nitro SXT 4x4, priced at $21,980, is powered by a 3.7L, 6-cylinder engine mated to a manual transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway.