Under the Pentastar is a quick video wrap of significant events at Chrysler Group LLC over the past week. This week's edition includes Chrysler Group sales surged in the U.S. last month, the new Jeep Grand Cherokee collects a prestigious "top-pick" award from the Insurance Institute for Highway Safety (IIHS), Dodge CEO Ralph Gilles discusses the launch of its new logo which dispenses with the traditional ram's head emblem, while the new Dodge Viper ACR-X, a non-street-legal racer, is launched on the track ahead of the start of a new one-make series for the car next month.