When the entire automotive group is disregarded, retail sales were unchanged last month, the report showed.
Some automotive groups like the idea of computer monitors.
This is usually done by an integral bus manufacturer, although large automotive groups also produce their own models.
Without the automotive group, total retail sales rose just four-tenths of 1 percent.
Traders moved into the automotive group during the day.
Ford blamed changing market conditions for the loss at the automotive group.
Garrett formed the automotive group in 1980 and by the mid-1980s there were over 100 turbocharged models.
He was an early bull on Ford, which remains his top choice within the automotive group.
His mild words were met with heated indignation from politicians and automotive groups here.
William Ford is executive director of business strategy for the company's automotive group.