oh i don't think so... look at the ugly intwerior of the challenger.. nothing retro about it.. now the mustang reminds me of a mustang dash from back in the day...
i wouldnt say the interior is ugly, remeber the challenger is a modern performance car so they want sport bucket seats that hold you in place, chysler isnt going to use a bench seat in the challenger just because it might look more"retro", but the only thing in the callengers interior that i thought could be made more retro is the guages as you mentioned. As far as the body is concerned, the body lines, the grill, the tailight panel, even the racing gas cap look retro and bad A$$