With its 50/50 split-fold rear seats in their upright position, the 500C rear cargo capacity is reduced from 9 cubic feet to 5.4 feet compared to the hatchback — offering 23.4 cubic feet cargo volume with the 50/50 split-fold rear seats folded. At its rear trunk lid, the 500C features "parallelogram" liftgate hinges. When the rear cargo lid is opened while top is fully lowered, the top automatically closes partly — for greater cargo access. Because of limited rear visibility, 500C models are equipped with an ultrasonic rear park assist system to audibly indicate obstacles when backing.