We can understand them considering that all their testing ground are crawling with professional spy Photographer who will put their precious engineering secret on front page a few hours after they hit the roads.
Although the true car fans will still see through the disguise. Those shot might be a lot harder to on magazine cover without creating some overwhelming confusion. without even talking about the legal repercussion as Dodge might not appreciate to see their Viper named the new Mercedes SLC !
Anyway, go check out the Viper Mercedes SLC video at Inside Line (link below).