The Big 3 combined to sell more than 68,000 certified pre-owned vehicles last month, as their year-to-date figures race ahead of 2013 numbers by nearly 17 percent.

That’s according to figures released last week by Autodata Corp., which said the programs within General Motors, Ford and Chrysler moved a grand total of 68,253 CPO units in April for a 13.5-percent year-over hike.

Through four months, domestics have sold 264,327 certified vehicles this year, up 16.9 percent from the year-ago time frame, Autodata indicated.

Ford’s brands sold 21,911 CPO units in April (up 16.2 percent) and have moved 85,771 certified cars in 2014 (up 24.1 percent).

There were 33,063 sales of certified Buick, Chevrolet, GMC, Pontiac and Saturn vehicles at GM last month, a 10.9-percent improvement, the data indicated. Those same brands have sold 125,625 CPO cars year-to-date (up 12.5 percent).

There were 1,872 Cadillac CPO sales last month (up 18.9 percent) with yearly sales at 6,705 (up 8.4 percent).

At Chrysler, the Dodge, Chrysler and Jeep brand certified sales came in at a combined 11,407 units for April, which beat the year-ago sum by 15.4 percent.

Through four months, the company has moved 46,225 certified vehicles, which is 18.4 percent ahead of where it was at this point of 2013.