FLINT, Mich.—General Motors Co. is intensifying its attack on rival Ford Motor Co.’s lead in sales to U.S. commercial fleets to prop up profit margins amid weakening consumer demand, according to executives at the No. 1 U.S. automaker.
GM is counting on new medium-duty Silverados—outfitted as tow trucks, utility bucket truck, and delivery trucks—to lift demand for its light-duty trucks and cars. Automakers estimate for every medium-duty truck a corporate customer buys, they purchase up to six pickup trucks, SUVs, or passenger cars.
