Abstract: A new concept vehicle comprises six major components: Sedan body shell with back opening, Entity of movable roof, rear pillars, and liftable back window, Unit of foldable trunk top and tailgate, Rear side windows with glass panels, Auto track systems, and Affiliate parts. Based on a basic sedan body with rear trunk opening, the entity of movable roof, rear pillar and liftable back window moves backward or forward along the track systems, and the unit of foldable trunk top and tailgate that enclose the trunk and body back works together with rear side windows and other components to make two types of vehicle configurations of standard sedan and light SUV/station wagon (which concept can also be extended to application and configuration on a pickup truck).

Abstract: A new concept vehicle comprises six major components: Sedan body shell with back opening, Entity of movable roof, rear pillars, and liftable back window, Unit of foldable trunk top and tailgate. Rear side widows with glass panels, Auto track systems, and Affiliate parts. Based on a basic sedan body with rear trunk opening, the entity of movable roof, rear pillar and liftable back window moves backward or forward along the track systems, and the unit of foldable trunk top and tailgate that enclose the trunk and body back works together with rear side windows and other components to make two types of vehicle configurations of standard sedan and light SUV/station wagon.

Abstract: A new combination vehicle of pickup and SUV which comprising four major parts: sliding roofing back, foldable middle plate, side window glasses, and auto sliding track system. By changing their performances the vehicle is convertible from either pickup truck to SUV or vice versa. It combines features, functions and characteristics of both vehicles, and meets the needs of both vehicle drivers, and furthermore saves the space, energy and protects the environment.