New Chevrolet Silverado, GMC Sierra pickups to debut in December image

General Motors plans to reveal its redesigned Chevrolet Silverado and GMC Sierra full-size pickups on December 13 in Detroit, officials said on Monday.

The two pickup trucks are vital to GM’s profitability in North America. The current Silverado 1500, unchanged since 2006, is GM’s best-selling vehicle in the U.S. at 298,200 units in the first nine months of the year. Following their debut in December, the 2014 Silverado and Sierra are expected to hit showrooms in 2013, with the exact date to be announced later by GM.

The two full-size pickups will be showcased at the 2013 North American International Auto Show in Detroit in January. The Silverado is currently in the final validation phase and “torture testing,” the automaker said earlier this month. The pickup competes against Ford’s F-150 series and Chrysler’s Ram pickup. Production of the new vehicle will start in 2013 at GM’s plants in Fort Wayne, Indiana, and Silao, Mexico.

According to Silverado marketing manager Tony Truelove, the new vehicle will balance performance capability and fuel economy. “We don’t trade off one to get the other. We feel we have a very good overall truck and will continue to improve on that formula for the next generation,” Truelove was quoted as saying by the Detroit Free Press.