General Motors, Ford, Honda and Fiat Chrysler all saw their sales go down in September. On the other hand, sales of Nissans and Toyotas were up.
Car sales in 2016 are on pace with 2015, says Jessica Caldwell, senior analyst with Edmunds.com. In 2015, 17.5 million vehicles were sold.
But "Just because we're not seeing the same amount of growth as we've had in the past six years, it's not a bad thing because we're on a record pace," Caldwell adds.