The Silverado gets a makeover this year that includes a new front fascia and revised side moldings and taillights. Top-of-the-line models also get power-folding heated mirrors with puddle lamps and turn signal indicators. On the inside, the Silverado is the first full-size pickup to offer a Bose stereo system and XM Satellite Radio. The instrument panel and center console have been redesigned, and Chevrolet has added new seats, a more comprehensive driver information center and a dual-zone climate control system. For increased safety, Silverados now feature a standard front-passenger-sensing system and dual-stage airbags. On the hardware side, the standard 6.0-liter V8 gets electronic throttle control as well as the ability to run exclusively on Compressed Natural Gas (CNG) or a mix of CNG and gasoline.