SRT Viper GTS-R Returns To RacingMatt Hardigree4/04/12 12:54pm106EditInvite manuallyPromoteDismissUndismissHideGo to permalinkCorvette beware. Viper is back. BMW beware. Viper is back. Ferrari beware. Viper is back. The 2013 Viper GTS-R will make its factory-backed reincarnation later this year when it battles in the GT class of the American Le Mans Series.