The v1 is tried by me, so it works good. The licence plate resonation has stopped, and you don't need to drill or carve, the fixer only requires a pair of M6 screws (approx 10mm), nuts and washers.

For easier installation, the nut screw is sits into the fix.

To fix, you need to print 2 of the fix.

I printed of PLA, but I think PETG is OK too.

The v2 is almost same as the v1, but the longer side is cutted at a sharper angle, so the clamping force is higher. This isn't tried by me, so I'm not sure v2 is work as good as the v1.