I found some on
www.jdpengineering.com/jdpcarbon/index.html.
Here's a link to a picture of what looks like a 1x1 mesh weave CF license plate frame:
http://www.jdpengineering.com/jdpcar.../license4.html.
I've tried contacting them twice through the sales contact e-mail address for pricing and availability. So far, the only thing I have gotten back is the sound of crickets.
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2011.5 M3 Coupe: Space Gray, 4MY, ZCP, ZCV, ZP2, 494, 5AC, 655, and 752
Mods: Full Venture Shield protection kit, RPi scoops, Euro fog light switch, LUX V4, clear reflectors, OEM black chrome grilles and side gills, black hood vents, IND F10 M5 shift knob and boot