Would you buy one? According to GM, production of the 2013 Chevrolet Silverado HD and GMC Sierra 2500 HD bi-fuel pickup trucks is underway and are available for order by fleet and retail customers through Chevrolet and GMC dealers. The 2013 bi-fuel pickups, Silverado HD and Sierra 2500 HD Vortec 6.0L V8, are designed to run on both gasoline or compressed natural gas (CNG). The vehicles can switch seamlessly between the two fuels without affecting performance, and are available in standard and long-box models, as well as two-or-four wheel drive in the extended cab models. According to Ed Peper, GM U.S. vice president of Fleet and commercial Sales, the CNG and gasoline tanks have a combined range of 650 miles, the longest standard bi-fuel range of any original equipment automaker.The bi-fuel pickups are ordered from the factory, sent to the Tier One supplier IMPCO for installation of the CNG bi-fuel delivery and storage system and then delivered by GM transportation to the dealer or to an upfitter for customer-ordered modifications. The bi-fuel option is priced at $11,000 above the suggested retail price of the base vehicle. The entire gaseous fuel system meets GM’s strict quality, durability and safety testing. The trucks will be covered by GM’s three-year, 36,000-mile new vehicle limited warranty and five-year, 100,000-mile limited powertrain warranty and vehicle emissions warranty. The vehicle meets all Environmental Protection Agency (EPA) and California Air Resources Board (CARB) emission certification requirements.