A single-owner 2010 Dodge Challenger SRT8 with Hennessey’s HPE550 package is now up for auction after 15 years.
The 5.7 HEMI is one of the most recognizable and celebrated American engines ever made. It's a beast of a power plant, with up to 395 horsepower and 410 lb-ft of torque on tap — right out of the box.
The muscle car boasts more oomph courtesy of the HPE550 upgrade, has lived its entire life in Arizona, and is now for sale ...