It does not meet Australian Design Rules if it is mounted to the side, under the headlight. That is why the AUDM Evo X has it in the centre nad the rest of the world has it to the side.
Yes, the previous Evos had it on the side, but they were a different shape which just squeezed in past the rule.
Sucks, but them's the brakes.
EDIT: Oh Hoggy, chrome it and mount the number plate in the centre of the lower grille, up high tucked up to the centre section, covering the screw holes from the lower grille. That would look the best imo.
Like This: (excuse the bad photoshopping)

[/img]