Thanks for reaching out, Lloyd!
Your local U-Haul installer might not have a solution for your 2021 Mitsubishi Mirage G4, but we do with the Curt Trailer Hitch Receiver # C11449 and the Curt T-Connector Vehicle Wiring Harness # C56223.
These are both custom options and the hitch only requires minor drilling to enlarge one of the access holes to the hardware can be installed. You can either have your contact at U-Haul install these parts for you, or you can check out the linked "Installer... view full answer...