AutoNation began the fourth quarter with an 8-percent increase in new-vehicle sales as company dealerships turned 24,844 new models in October.

New-vehicle sales for AutoNation's operating segments were as follows:

• 7,497 for domestic, up 7 percent versus last October

• 11,917 for import, up 11 percent versus last October

• 5,430 for premium luxury, up 5 percent versus last October

On a same-store basis, AutoNation reported that new-vehicle sales in October rose 7 percent year-over-year.

AutoNation expects to report November new-vehicle unit sales on Dec. 3.