Magnetic P plates will be fine on the rear, as the boot is steel.
However the bonnet and front bumper are non ferrous (aluminium and plastic) will not attach.
The front bumper is steel but impractical to fit as shown in left pic. You could feasibly cut a standard P plate down a bit to fit, but it might not be terribly visible or legal.
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You could cut a piece of galvanised iron or steel sheet to the same size as a P plate with tab extending on one side. drill two holes in the tab to match your front number plate. Then bolt the tab behind and to the two holes on the end of your front number plate. This would create a square beside the front plate to place the magnetic P plate on. BTW the Ls are for the ute. I use the suction cup ones in the Tesla, but the are a bit of a PITA to affix.