GM, Toyota sales rise; Ford, FCA, Nissan slip in August by deeperkins | Sep 1, 2017 | Uncategorized GM posted a 7.5 percent increase in August U.S. sales behind higher fleet and retail volume, and double-digit increases at Chevrolet and GMC. Toyota posted a 6.8 percent bump. Ford, FCA and Nissan volumes dropped. Source: Auto Feed