Mopar, Chrysler's affiliated tuning and accessories arm, has a special group within its ranks called Mopar Underground - late last year we reported on one of the division’s more memorable projects, a V10-powered Dodge Challenger. Now, Mopar Underground has brought us some new concepts, this time taking on two cars from the Jeep brand and transforming them into new off-road concepts.

The first concept, the Jeep Lower Forty, is based on the Jeep Wrangler platform but makes use of giant tires and wheels to give it more visual impact. Speaking with Edmunds, A Chrysler spokesman stated that "the Mopar Underground crew added the aggressive wheels and tires to a stock, two-door Wrangler Rubicon without the use of a suspension lift."

Ultimately, the "team's goal was to achieve added ground clearance without altering the vehicle's center of gravity. To accomplish that feat, the team trimmed copious amounts of the body and fenders to provide the needed tire clearance. Once achieved, the team used a saw to remove 3in of height from the windshield frame and increased the rake by 10 degrees." Powered by the famous 5.7L Hemi V8 engine, the car also features a carbon-fiber hood and a custom exterior paint color.

The second concept, called the Jeep Grand Canyon II, was built with a greater focus on luxury. Based on the 2009 Jeep Grand Cherokee Overland, the car's rear seats have been removed and replaced with a rubber floor to facilitate camping. There is also a two-man tent and an awning fixed to the cargo rack, while an upgraded suspension system and other off-road specialty items help the vehicle get to those tough-to-reach camp spots.

Unfortunately for us, the concepts will definitely not be heading for production as Chrysler explained that the vehicles show consumers what its designers think of during their free time and some of the ideas may influence a range of future Mopar accessories and upgrades.