liftgate

Etymology

lift + gate

noun

1. (truck equipment) A hydraulic or electric platform that installs onto the rear of a vehicle and which may be raised or lowered in the loading/unloading of heavy cargo
   If the liftgate is for a dry van body, the body’s width — for example 96 or 102 inches — impacts the liftgate’s overall width and available platform sizes. July 1, 2013, Sean Lyden, “Need a Lift? Remember to Spec the Right Liftgate”, in Work Truck Magazine, archived from the original on 2015-05-25
2. (automotive) A closure at the rear of a vehicle, or rear door, that can be raised to access the back of a vehicle
   But Ford loaded that car up with options, including […] a power liftgate and heated second-row seats ($825). September 30, 2007, Christopher Jensen, “The Rerunning of the Bulls”, in New York Times