For that small percentage of buyers that aren't satisfied with the 2010 Ford Mustang-based Shelby GT500 that packs a 5.4-liter supercharged V8 with 540 ponies under the hood, Caroll Shelby and his team have prepped an even more hardcore package called Super Snake. Due to go on sale in August, Shelby offers the Super Snake package on the GT500 in two guises, with outputs of 630 and 725 horsepower, the latter offered only on the coupe model. 
Shelby achieves the power upgrades with a different supercharger kit and a new exhaust system while other mods include a cold air intake system and a custom drive shaft on the 725HP variant
To improve handling, the Super Snake package adds a race-spec suspension system with adjustable dampers, a short throw shifter and a Baer brake system with 6 piston calipers and cross drilled and ventilated discs. Customers can also opt for a more hardcore Eibach handling pack.
On the aesthetics side, Shelby adorns the basic GT500 with a unique fiberglass hood with a larger air scoop, specific stripes, numerous carbon fiber body components, sequential tail lights, quarter window scoops and of course, new 20-inch alloy wheels shod in Pirelli P-Zero rubber.
For the interior, the basic Super Snake package adds center gauge cluster, satin door lock knobs and headrests embroidered with the Shelby logo which also appears on the center console.
Once you bring in your GT500, Shelby will charge you $29,495 for 630HP package and $33,495 for the 725HP kit. In both cases, prices including installation but not the donor car - just to make it clear.
