Two Minivans with more similarities, such as the body structure, starting price, ground shadow size, height, and maximum occupancy, than differences, like the horsepower and fuel economy. And finally, although the 2015 Ram Promaster City has a more powerful engine than the 2016 Ford Transit Connect, it gets 1.5 more mpg. Among similarities are the body structure, starting price, ground shadow size, height, and maximum occupancy.