Sorry for reviving such an old thread, but wasn't sure which afterburner thread to choose from! Just saw the taillights on the 2014 Kia Forte which have a diffused LED effect like those on the Camaro Concept. They can be found on the MT website (wasn't sure if I can 'borrow' their photo and insert it here):
http://wot.motortrend.com/refreshing...#axzz2Uz4t6jIT
If they can afford to put these on a Kia perhaps there is still hope - well for 2016 anyways. Come on GM!