•The Sport and SXT versions of the 2003 Dodge Durango came with a standard five-speed automatic overdrive transmission, though the other versions either came with a standard four-speed automatic overdrive transmission or had it available as an option. All versions were available as either a two- or four-wheel drive version, except the R/T, which was only available in four-wheel drive. The SUV had an EPA estimated mileage rating of 12 to 14 mpg for city and 17 to 19 mpg highway. ,