The certified pre-owned programs among many import automakers fared well in July — European-brand CPO sales were up 20.6 percent year-over-year, and Asian brands climbed 3.6 percent, according to Autodata Corp. — but one particular trio of brands enjoyed their strongest months of all time.

Autodata said in its preliminary set of data released Tuesday that Hyundai, Kia and MINI each posted best-ever months.

Hyundai moved 8,490 CPO units, which was a 26.1-percent year-over-year increase and pushed the year-to-date sum to 54,342 CPO sales (up 23.1 percent).

Kia sold 4,423 certified vehicles, up 38.3 percent year-over-year. Through seven months, it has moved 26,286 CPO units (up 40.8 percent).

MINI had 841 certified sales for a 42.8-percent hike. Its year-to-date sum is at 5,215 sales (up 41.4 percent).

Volkswagen, meanwhile, reported its best July ever for certified sales, despite year-to-date numbers being 8.6 percent lower. VW moved 8,126 CPO units for the month, compared to 8,114 certified sales a year ago.

Overall, Asian brands had 95,487 certified sales for July, with year-to-date sales at 633,583 units (up 4.1 percent). For European brands, July CPO sales came in at 35,232 units, resulting in a year-to-date tally of 232,816 CPO sales (up 12.9 percent).