A vehicle rear portion structure including: a spare tire house; a front side reinforcing portion provided at a bottom wall portion of the spare tire house, the front side reinforcing portion reinforcing the bottom wall portion and structuring a first high rigidity portion; a rear side reinforcing portion provided at the bottom wall portion so as to include a lower wall portion that extends in a vehicle longitudinal direction, the rear side reinforcing portion being disposed at a vehicle rear upper side of the front side reinforcing portion, reinforcing the bottom wall portion, and structuring a second high rigidity portion, and a low rigidity portion provided between the first high rigidity portion and the second high rigidity portion, and a rigidity of the low rigidity portion being set to be lower than rigidities of the first high rigidity portion and the second high rigidity portion.

A cargo floor system includes a floor pan and a retractable floor assembly. The floor pan includes a recessed storage compartment and an access opening in communication with the recessed storage compartment. The retractable floor assembly includes a retractable floor spanning the access opening and a drive mechanism displacing the retractable floor between a deployed position closing the access opening and a stowed position opening the access opening.

A cargo floor system includes a floor pan and a retractable floor assembly. The floor pan includes a recessed storage compartment and an access opening in communication with the recessed storage compartment. The retractable floor assembly includes a retractable floor spanning the access opening and a drive mechanism displacing the retractable floor between a deployed position closing the access opening and a stowed position opening the access opening.

A floor bracket includes a first bracket portion extending along a longitudinal axis, a second bracket portion, and a third bracket portion coupled between the first bracket portion and the second bracket. The floor bracket further includes at least one hook extending from the second bracket portion toward the third bracket portion.

A spare wheel lift mechanism is provided for a motor vehicle. That spare wheel lift mechanism includes a holder for receiving and holding the spare wheel and a support for the holder. The support is displaceable between a wheel storage position within a storage compartment of the motor vehicle and an access position wherein the spare wheel projects at least partially outside the body of the motor vehicle for easy access. A method of assisting an individual with access to a spare wheel stored in a storage compartment of a motor vehicle is also provided.

A spare wheel lift mechanism is provided for a motor vehicle. That spare wheel lift mechanism includes a holder for receiving and holding the spare wheel and a support for the holder. The support is displaceable between a wheel storage position within a storage compartment of the motor vehicle and an access position wherein the spare wheel projects at least partially outside the body of the motor vehicle for easy access. A method of assisting an individual with access to a spare wheel stored in a storage compartment of a motor vehicle is also provided.

A spare wheel lift mechanism is provided for a motor vehicle. That spare wheel lift mechanism includes a holder for receiving and holding the spare wheel and a support for the holder. The support is displaceable between a wheel storage position within a storage compartment of the motor vehicle and an access position wherein the spare wheel projects at least partially outside the body of the motor vehicle for easy access. A method of assisting an individual with access to a spare wheel stored in a storage compartment of a motor vehicle is also provided.

A vehicle rear portion structure including: a spare tire house; a front side reinforcing portion provided at a bottom wall portion of the spare tire house, the front side reinforcing portion reinforcing the bottom wall portion and structuring a first high rigidity portion; a rear side reinforcing portion provided at the bottom wall portion so as to include a lower wall portion that extends in a vehicle longitudinal direction, the rear side reinforcing portion being disposed at a vehicle rear upper side of the front side reinforcing portion, reinforcing the bottom wall portion, and structuring a second high rigidity portion, and a low rigidity portion provided between the first high rigidity portion and the second high rigidity portion, and a rigidity of the low rigidity portion being set to be lower than rigidities of the first high rigidity portion and the second high rigidity portion.

A lower vehicle body rear structure includes a rear floor integrally formed in a die-casting mode, rear floor longitudinal beam rear sections fixedly connected to the rear floor, a shelf, and a spare tire cabin. Rear floor longitudinal beams arranged on the two sides of the rear floor, and a rear floor middle cross beam and a rear floor rear cross beam which are connected between the rear floor longitudinal beams are formed on the rear floor, and rear wheel covers connected to the rear floor longitudinal beams are respectively arranged on the two sides of the rear floor. The shelf is located above the rear floor, and the two ends of the shelf are connected to the rear wheel covers by means of connecting plates; and the rear floor, the shelf and the two connecting plates are connected to form an annular structure.

A lower vehicle body rear structure includes a rear floor integrally formed in a die-casting mode, rear floor longitudinal beam rear sections fixedly connected to the rear floor, a shelf, and a spare tire cabin. Rear floor longitudinal beams arranged on the two sides of the rear floor, and a rear floor middle cross beam and a rear floor rear cross beam which are connected between the rear floor longitudinal beams are formed on the rear floor, and rear wheel covers connected to the rear floor longitudinal beams are respectively arranged on the two sides of the rear floor. The shelf is located above the rear floor, and the two ends of the shelf are connected to the rear wheel covers by means of connecting plates; and the rear floor, the shelf and the two connecting plates are connected to form an annular structure.