The 2007 Chevrolet Silverado 3500HD is part of the truck's second generation. It's a heavy-duty, full-size pickup available with either rear-wheel or four-wheel drive. Under the hood, the Silverado 3500HD features a 6.0-liter V8 engine that churns out 353 horsepower, but there is also an optional 6.6-liter turbo-diesel V8, which produces 365 horsepower. These engines are matched with a six-speed automatic transmission. The 3500HD offers potent towing and hauling capabilities, essential in a truck of this magnitude. It is available in three trims: the basic Work Truck, the mid-level LT, and the high-end LTZ. Notable features for this year include an updated design, more comfortable and quieter interiors, and improved driving dynamics. Safety features include antilock disc brakes, an optional stability control, and a tire-pressure monitoring system.