General Motors reports that the Sierra has sold 115,185 units year-to-date. The figure, however, includes 2006 and 2007 models of the Sierra 1500, Sierra 2500 (three-quarter ton), Sierra 3500 (one-ton) and even the 2007 Sierra "Classic" based on the older GMT800 platform. GM doesn't break down the sales numbers for the Sierra by model, so Levine got creative and used production numbers for each model from both 2005 and 2006 to extrapolate what percentage of this year's sales the Sierra 1500 model was likely to be. Assuming the Sierra 1500 represents about two-thirds of all Sierra sales, that would mean GM sold 76,700 units of the truck during the first seven months of 2007. The Tundra, meanwhile, sold 105,990 units, of which 97,290 were the all-new 2007 Tundra. Based on an "apples-to-apples" comparison in sales between half-ton models, it would then seem the 2007 Toyota Tundra easily outsold GMC Sierra 1500 to become the #4 best-selling half-ton pickup in the U.S. Based on projections through the end of the year, the Tundra will likely outsell all GMC Sierra models, as well, making it the #4 best-selling truck of any kind in the U.S. behind the Ford F-150, Chevy Silverado and Dodge Ram.
Thanks to Mike for doing the legwork and crunching the numbers.