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Equus Automotive combines a Ford Mustang and a Dodge Challenger into one.

Police and rescue vehicles pump out an array of aural and visual warnings to tell motorists and pedestrians to get out of the way. With distractions like cell phones, MP3 players, eating on the run, and applying a fresh coat of Revlon, civil servants still can't seem to grab our attention. That's where Federal Signal's Rumbler comes in. The new audio warning system doesn't pierce your ears with loud, screeching sirens. It uses low frequency sounds coming from two sub-woofers and an amp to shake