Given what you are hoping to provide is just an easily seen shadow effect contrasting with mesh behind the main grill, I suspect that anything other than a simple single large as possible numeral will dilute the visual impact.
![[Linked Image]](https://media.evo.co.uk/image/private/s--44m92p7S--/t_content-image-desktop@2/v1556219874/evo/2018/03/plus-8-50th-1.jpg)
As mentioned elsewhere I considered similar for my Roadster with a "6" of course, but believe the retained number plate box reducing visible area of grill would reduce the impact.
