Ford engineers made the 3.5L EcoBoost the standard engine because they knew how important performance is in this full-size class of vehicle. Ride comfort, too. That’s why they gave Expedition an independent rear suspension. Expedition ride quality and control are enhanced even further with the available Continuously Controlled Damping System with 22-inch polished aluminum wheels. If you need to tow a large boat or camper-trailer, the 3.5L EcoBoost engine delivers 365 horsepower and 420 lb.-ft. of torque, giving the Expedition a maximum 9,200-lb. towing capacity when equipped with the Heavy-Duty Trailer Tow Package. Expedition features standard Trailer Sway Control working in conjunction with AdvanceTrac with RSC (Roll Stability Control™). When trailer sway is detected, the system takes measures, such as applying precise vehicle braking or reduced engine torque, to help bring both vehicle and trailer under control.