The 2009 Dodge Nitro is available as a 4-door, 5-seat sport utility. Starting at $24,560, the 2009 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 2009 Dodge Nitro SE 4x4, priced at $23,900, is powered by a 3.7L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 21-mpg on the highway.