Along with the rest of the stars being unveiled at this year's SEMA autoshow in Las Vegas, a 2015 Ford Mustang RTR with 725 horsepower is on display, itching to hit the open road. Developed by Vaughn Gittin Jr. of the Vaughn Gitten Motorsport team, this latest model is based on the all new year, which offers a mean-looking and equally powerful option under their Spec 1 and Spec 2 package options. Spec 1 just focuses on cosmetic changes, including a new spoiler, rear diffuser, grille, and new lighting and rocker splitters. The Spec 2 package, however, gives you all of the above plus a variety of power boosts, primarily a heavily-modified V8 5.0-liter supported by a supercharger as well as adjustable dampers and sway bars, lowering springs, a new cold air intake system, and a Magnaflow bespoke exhaust. The new 2015 Ford Mustang RTR will be available at select Ford dealers worldwide beginning this January.