The 2012 Dodge Grand Caravan is available as a 4-door, 7-seat passenger van. Starting at $20,995, the 2012 Dodge Grand Caravan SE/AVP is powered by a 3.6L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway. The top of the line 2012DodgeGrand CaravanR/T , priced at $ 29,995 , is powered by a 3.6L , 6 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 25-mpg on the highway.