The Impala was redesigned in 2006 and receives only minor changes for 2007. First, a new 3.9-liter V-6 gets Active Fuel Management. The 3.5-liter V-6 E85 sedans will get a Flex Fuel badge. A tire-pressure-monitoring system is standard. The LT gets standard 16-inch, 5-spoke alloy wheels, while the SS gets standard leather-appointed seats and XM Satellite Radio, with XM being optional on LS, LT, and LTZ trims. The generation-7 OnStar system with Turn-by-Turn navigation is standard when the available Directions & Connections service is selected. Also, there are four new exterior shades—Precisions Red, Imperial Blue Metallic, Bordeaux Red, and Red Jewel Tintcoat.