General Motors' US vehicle sales rose nine-point-seven in May and says it's partly due to offering more fuel-efficient cars and trucks.
The Detroit automaker saw car sales rise 16-point-two percent while light truck sales gained five-point-six percent.
The industry's top seller wasn't the only one to post gains. Toyota, Nissan and DaimlerChrysler all reported sales increases. Ford saw sales fall six-point-nine percent though it marked its best retail month of the year.