As fitted to models at least from 2006 on without full bumper, part #MCF6106 as below.
Cosmetic condition and colour unimportant as it will be used as a basis for cut down version to align with wing seams - no cracks though.
I'm hoping someone has one that has been discarded to allow plate to be fitted directly to car. Happy to collect within 100 mile radius of NR16 2AD as bulky and fragile to post. Please pm with photo/price.