The ornamental design for a rearportion of a vehicle, toy replica and/or other replicas, as shown and described.
FIG. 1 is a right rear perspective view of a rear portion of a vehicle, toy replica and/or other replicas according to our novel design, the left perspective view being mirror symmetrical;
FIG. 2 is a right side view thereof, the left side view being mirror symmetrical; and,
FIG. 3 is a front view thereof.
The broken line showing of the license plate, gas tank cover, exhaust pipes, wheels, and front portion of the vehicle is for the purpose of illustrating environmental structure and forms no part of the claimed design.