The ACRX is the pinnacle race for the Dodge brand.  The car starts off the line at the
Conner Avenue Assembly Plant in Detroit as it's own part number for each car.  The
640 HP engine is purpose built to take the demands of the track.  It has a roll cage
and fire suppression system for safety along with an incredible weight reduction
over a standard Viper.  It has been spec'd to run the Viper Cup racing series
throughout the country.  These cars are not street legal but lethal on the track.  
 
Viper ACR-X