Looks like the new 2013 Viper is hitting the track before the showroom. Return of the Viper! (lemans.org)
[ame=http://www.youtube.com/watch?v=k4KW29SNTGI]2013 SRT Viper Revealed! - Wide Open Throttle Episode 10 - YouTube[/ame]
Yikes, that's a heckuva waiver: "Powered by an 8.0-liter V10, the car has allegedly received a waiver by the ACO to compete in GTE-Pro/GT, as rules prohibit an engine displacement over 5.5 liters."