This is being talked about in a viper forum that I am a member of. Anyway there is a pic of a magazine article that has the two head to head where the viper wins. 1/4 Viper-11.77, Ford GT-11.78. yes I know a tenth of a secant but that can also be true with both cars, and drivers but still 0-60 Viper- 3.3, Ford GT- 3.6.
http://gallery.viperclub.org/data/50...GT_MAG-med.JPG