These two surprisingly have more similarities, such as starting price and ground shadow size, than difference, like body structure, horsepower, and maximum occupancy. First of all, despite the fact that the 2017 GMC Savana is a Van and the 2017 Ram 2500 Regular Cab is a Pickup, there is no major difference in exterior dimensions. Also, the 2017 2500 Regular Cab pulls more horsepower than the 2017 Savana. And finally, you'll seat two more passengers in the Savana than in the 2500 Regular Cab. Among similarities are the starting price and ground shadow size.