For the 2011 SEMA show, Mopar Underground created the Dodge Challenger SRT8 ACR based on the stellar Challenger SRT8 392. The Challenger ACR is a no-frills homage to the original option-delete cars of the 1960s and 70s.

The Dodge Challenger SRT8 ACR is equipped with Mopar parts, such as a coil-over suspension, front-and rear-strut tower braces, short-throw shifter, front splitter, cat-back exhaust, custom exhaust headers and a set of Goodyear F1 Supercar performance tires. The interior enhancements for the Dodge Challenger SRT8 ACR include carbon fiber door panels, front race bucket seats with openings for a racing harness and the rear seat is removed and replaced by a roll bar and fire extinguisher. An SRT three-spoke flat-bottom steering wheel, SRT gauge cluster, custom bright pedal kit, Mopar Drag Pack center stack and a carbon fiber center console finish off the interior modifications.

The exterior design of the Dodge Challenger SRT8 ACR is similar to those found on the Viper SRT10 ACR, including a white body, charcoal painted roof, carbon fiber hood, rear deck lid, rear spoiler and tail lamp surround and an offset flame red stripe that runs the length of the car. Red painted mirror caps and brake calipers, unique black painted five-spoke 20-inch alloy wheels and red “ACR” fender badging finish off the exterior design details.