The 2013 SRT Viper GTS-R will be attending the 2013 Le Mans 24 Hours, but before it gets to the Big Show of endurance races, it will contest the first half of the 2013 American Le Mans Series season--the last season before the merger with Grand Am. The season starts at Sebring, March 13-16.

Here, the GTS-R is shown behind the scenes in testing as it prepares for the epic 61st running of the Twelve Hours of Sebring.

The Viper GTS-R already made its racing debut last season, of course, with a driver lineup including Kuno Wittmer, Ryan Hunter-Reay, Dominik Farnbacher, and Marc Goossens. When the car arrives in Le Mans, it will be wheeled by Wittmer, Farnbacher, Jonathan Bomarito, and Tommy Kendall.

For all of our 2013 SRT Viper coverage, including the road-going counterpart, check out our hub page here.