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.

A system, method, and apparatus for modifying a vehicle comprising a cab enclosure configured to interface with a vehicle, a fixed deck, configured rearward of, and cooperating with, the vehicle cab, and an extensible deck projecting from, and cooperating with, the fixed deck. The cab enclosure further comprises at least one roof adaptor comprising at least one roof adaptor panel connected to the vehicle and a lower cab enclosure comprising at least one panel connected to the vehicle wherein the cab enclosure elements, fixed deck, and extensible deck are connected to the vehicle without permanent modification to the vehicle.

A system, method, and apparatus for modifying a vehicle comprising a cab enclosure configured to interface with a vehicle, a fixed deck, configured rearward of, and cooperating with, the vehicle cab, and an extensible deck projecting from, and cooperating with, the fixed deck. The cab enclosure further comprises at least one roof adaptor comprising at least one roof adaptor panel connected to the vehicle and a lower cab enclosure comprising at least one panel connected to the vehicle wherein the cab enclosure elements, fixed deck, and extensible deck are connected to the vehicle without permanent modification to the vehicle.

A trailer moveable by a cab includes: a first section including a cavity and a second section at least partially positioned within the cavity, where the second section is longitudinally movable relative to the first section, such that a length of the trailer is variable. The second section includes a cart including at least one wheel configured to roll along a floor of the cavity and a height-variable member co-acting with the at least one wheel. The second section is configured to move longitudinally relative to the first section by the cart rolling along the floor of the cavity. A towing system and a method for adjusting a length of a trailer moveable by a cab are also disclosed.

A trailer moveable by a cab includes: a first section including a cavity and a second section at least partially positioned within the cavity, where the second section is longitudinally movable relative to the first section, such that a length of the trailer is variable. The second section includes a cart including at least one wheel configured to roll along a floor of the cavity and a height-variable member co-acting with the at least one wheel. The second section is configured to move longitudinally relative to the first section by the cart rolling along the floor of the cavity. A towing system and a method for adjusting a length of a trailer moveable by a cab are also disclosed.

A moveable tonneau cover includes multiple wheels and multiple hinge elements. A tonneau cover mechanism includes multiple tracks each including an upper portion and a lower portion, and a switch that transitions to connect with the upper portion and the lower portion based on a weight of the movable tonneau cover such that the moveable tonneau cover is configured to move between a first position above a truck bed and a second position above the first position.

A moveable tonneau cover includes multiple wheels and multiple hinge elements. A tonneau cover mechanism includes multiple tracks each including an upper portion and a lower portion, and a switch that transitions to connect with the upper portion and the lower portion based on a weight of the movable tonneau cover such that the moveable tonneau cover is configured to move between a first position above a truck bed and a second position above the first position.

A multi-purpose vehicle includes a seat provided between front wheels and rear wheels, a load carrying deck provided on a rear side of the seat, a right tail lamp provided on a right lower side of a rear portion of the load carrying deck, a left tail lamp provided on a left lower side of the rear portion of the load carrying deck, a right tail lamp guard provided on rear side of the right tail lamp and connected to the load carrying deck, a left tail lamp guard provided on rear side of the left tail lamp and connected to the load carrying deck, and a rear bumper. The rear bumper is connected to and between the right tail lamp guard and the left tail lamp guard.

A multi-purpose vehicle includes a seat provided between front wheels and rear wheels, a load carrying deck provided on a rear side of the seat, a right tail lamp provided on a right lower side of a rear portion of the load carrying deck, a left tail lamp provided on a left lower side of the rear portion of the load carrying deck, a right tail lamp guard provided on rear side of the right tail lamp and connected to the load carrying deck, a left tail lamp guard provided on rear side of the left tail lamp and connected to the load carrying deck, and a rear bumper. The rear bumper is connected to and between the right tail lamp guard and the left tail lamp guard.

A replacement tailgate for the purpose of elongating the pick up truck may be installed on a truck bed wherein the replacement tailgate can be unfolded in order to elongate a length of the truck bed. The replacement tailgate may have front and rear shells that are used to support objects placed in the truck bed as well as act as the new tailgate when the truck bed length is elongated. Various panels may be unfolded in order to trap objects within the truck bed when the replacement tailgate is unfolded in order to elongate the truck bed length.