Think I may have found a nice design to bolt on a bracket for a 2026 Prius rear license plate. I have no association with the "Neo Make Shop". I liked their design so I made my own model in PrusaSlicer and 3D printed it on a Prusa MK4/MMU3 in PETG. There are two holes in my bracket design that are 210 mm C-C to fit the factory holes on the rear bumper and another set of holes that are 178mm C-C to bolt on a US license plate. Outer holes are sized for 5mm SS cap head fastener and inner holes are sized for a 5mm heated insert. Close up photo of the GenV Prius black bumper shows both the factory hole and an additional hole in the upper right area. This hole in the upper right was "dealer installed" when they used self-taping screws to apply their plate frame to the bumper. I have since removed their plate frame and put a piece black electrical tape over each hole. I ordered SS U nuts from Amazon. These U nuts are installed on the factory bumper factory. Link to the bracket 3D model files on Printables.com Better Prius Gen V Rear License Plate Bracket by BID3D | Download free STL model | Printables.com I will post the 3D model file on Printables.com I've included photos of the factory holes on a 2026 rear bumper. My bracket has a small void on the underside to fit over the installed U-nut.