Unlike Ford, GM's incentive promotion and other offers brought a September sales surge of 24.9 percent to the automaker. Throughout the industry auto sales were up 10.2 percent in September when compared to the same month in 2003. Another big boost to GM was a gain of percentage share. They jumped 3.8 points to capture 31.7 percent of sales. As one dealer put it, "That's one heck of a month."