Domestics continued what has been a strong year for certified pre-owned operations for the Big 3, increasing their combined September CPO sales by more than 25 percent year-over-year, according to Autodata Corp.

More specifically, their dealers moved 67,526 certified vehicles during the month for a 25.1 percent hike, pushing the year-to-date sum to 612,560 CPO sales (up 14.8 percent).

Ford’s brands sold 23,696 CPO units in September (up 32.7 percent) and moved 203,631 certified vehicles in the first three quarters of the year (up 19.5 percent).

At General Motors, there were 30,285 certified sales of Buick, Chevrolet, GMC, Pontiac and Saturn vehicles, which is a 16.5-percent improvement.

Those same brands have posted CPO sales of 285,362 units this year, a 10.5-percent hike.

Cadillac sold 1,719 certified vehicles for the month (up 34.2 percent), and its year-to-date sales stand at 15,439 units (up 12.2 percent).

Over at Chrysler Group, its CPO sales (excluding Fiat) reached 11,826 units during the September, a 33.8-percent rise. 

It has moved 108,127 certified vehicles in nine months of 2014 for an 18.8-percent gain.

(Fiat had 76 CPO sales for the month and 461 year-to-date).

In total, domestics commanded a 35.9-percent share of the overall CPO market in September, and a 35.1-percent share year-to-date, according to Autodata.