This video by Chrysler shows just exactly how a "normal" Dodge Viper becomes an ACR-X, the track only model. While the job is done at the same facility that produces the built-from-the-ground-up Viper Competition coupes, the ACR-X is retrofitted with race goods after it is assembled.
The list of goodies is long: roll cage, brake cooling ducts, racing fuel cell, fire suppression system, and huge brakes. All of which make the ACR-X track ready, almost from the showroom floor.
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