McLEAN, Va. -

There were 3.48 million vehicles (up to 8 years of age) sold at auction in the first three quarters of the year, according to the latest Guidelines report from NADA Used Car Guide.

That’s a 7-percent increase from 2015, and one group that has seen a particularly significant volume spike has been 2013 model-year vehicles.

NADA Used Car Guide said in the report that sales volume for these vehicles has climbed 31.4 percent year-to-date, driven largely by off-lease volume.

Late-model auction sales volume, in general, is up 11 percent, with truck and utility segments dominating the increases.

There have been 2.04 million auction sales of units up to 3 years old.

Late-model growth patterns

Looking at the late-model class in more detail, compact utility and large pickup volumes are each up 33 percent through September, with midsize utility close behind (up 32 percent).

In fact, the top eight segments for late-model volume growth are either trucks or utility vehicles.

Luxury compact utility auction sales volume has climbed 29 percent, with midsize pickups and luxury large utilities each up 27 percent. Also increasing more than 20 percent were luxury midsize utilities (up 23 percent). Meanwhile, large utility vehicle volume is up 14 percent.

Leading the car segments has been the subcompact (up 12 percent).

The segments with the largest decline in auction volume have been the large car (down 26 percent) and the luxury large car (down 25 percent).