I like the concept's taillight. I hope they make it LED - make that thing REALLY stand out. Remember the 70 Challenger had this type of taillight long before some forgettable 80's Buick Somerset (actually the Century in the early to mid-90s had something similar for awhile too), so if anyone is ripping anyone's idea off it's GM and not DCX - they had it first.
Of course I like the 72-74 taillights also, but I've never been crazy about the 71's taillights. - they just never seem to work as well as the other years for some reason IMHO.