What is that CHP vehicle in the rear view mirror?

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Cool article (and accompanying graphic illustrations)
 

What is that CHP vehicle in the rear view mirror?

For three decades, the California Highway Patrol has used the Ford Crown Victoria sedan as its primary patrol vehicle. In 2013, the CHP switched to Ford’s Explorer-based Police Interceptor Utility. The “PUV” sports new safety and handling features and more cargo space and looks strikingly different from what California motorists are used to seeing.

 

Article: http://www.latimes.com/visuals/graphics/la-me-g-chp-vehicles-20141226-htmlstory.html