One thing that occurs to me is how the inside edge is finished, i.e. the surrounding edge of the viewing port? On the OEM fascia this is heavily champfered (I presume to allow a greater viewing angle). Is the intention for these aluminium fascias to be similarly finished?

I think it might also look better that way (i.e. champfered), but if it is really square cut then it will mask some of the screen when viewed from an angle (which is often required in a vehicle).