The 2016 RAM ProMaster City is available as a 4-door, 2-seat cargo van. Starting at $23,445, the 2016 RAM ProMaster City Cargo is powered by a 2.4L , 4 -cylinder engine that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway. The top of the line 2016RAMProMaster CitySLT Wagon , priced at $ 26,070 , is powered by a 2.4L , 4 - cylinder engine that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway.