WOODCLIFF LAKE, N.J. -

September’s certified pre-owned vehicle sales total — a performance that included new monthly all-time highs for Porsche and Mazda — helped to push the industry to the highest amount of units sold in a single quarter ever.

Autodata Corp. reported on Thursday that September CPO sales came in at 154,702 — a figure that was 9.1 percent higher than the same month last year. Although the September total represented a 3.4-percent softening from August’s sales figures, Autodata pointed out there were two less selling days last month as compared to the last full month of summer.

As a result of September’s mark, Autodata discovered that third-quarter CPO sales totaled 465,905 — the highest of any quarter the firm has ever charted.

The figure also was 6.2 percent higher than the third quarter of last year, as well as 0.8 percent above the second quarter of this year.

Through September, the industry has turned 1,382,817 CPO models, which Autodata said was 5.8 percent higher than what OEM certified programs produced through the first nine months of last year.

Domestic automakers’ share of the CPO market softened by 1.6 percentage points in September, settling at 30.3 percent.

As the Europeans' share ticked up by 1.1 percentage points to 17.4 percent, Autodata noted that the share held by Asian OEMs moved up to 52.4 percent, a 0.5 percentage point gain.

Editor’s Note: For a complete list of each automaker’s September CPO sales figure, be sure to check the upcoming print edition of Auto Remarketing.