DETROIT — This year, fleet professionals across the country chose the Chevrolet Silverado, GM's best-selling vehicle, as the Fleet Truck of the Year, citing its reliability and flexibility. Click on www.fleet-central.com/t_home.cfm/, scroll to the middle of the page, and click on "2004 Model Truck of the Year" for detailed coverage on the 2005 Chevrolet Silverado being voted fleet truck of the year. Sponsored by Automotive Fleet and Business Fleet magazines, the Fleet Truck of the Year competition featured 15 domestic and imported 2005-model pickups and vans. Qualified fleet buyers voted online via the magazines' shared Web site, www.fleet-central.com/. The Silverado's range of light-duty models serves commercial industries including construction, oil field services, utilities, and manufacturing. The truck can be ordered in a variety of configurations: regular cab, extended cab, or crew cab body styles; standard 6.5-ft. or extended 8-ft.cargo boxes in either Fleetside or Sportside style; 1500, 2500, or 3500 models; and with either two- or four-wheel-drive systems. The Flex Power system available on the 1500 Series Extended Cab Silverado replaces the conventional starter motor and alternator with a compact 14-kw electric motor or starter generator integrated between the engine and transmission. According to GM technicians, the starter generator provides fast, quiet, starting power and allows automatic engine stops/starts to conserve fuel. In addition, the system smoothes driveline surges, generates electric current to charge the batteries and run auxiliary power outlets, and provides coast-down regenerative braking.