Costco Auto Program announced that in the first month of its General Motors Holiday sales event, 70 percent of purchases were for truck crossover and truck segments.

In addition to its members showing the most interest in the crossover and truck segments last month, Costco said October also included the highest registration day for a promotion.

More than 4,200 Costco members registered for the offer on Oct. 19.

“Just one month into the GM Holiday Sales Event, we saw a 44 percent increase in the number of vehicles sold compared to last year’s event,” said General Motors spokesperson, Jim Cain. “The event is off to a great start and we look forward to seeing what the coming weeks will bring.”

Chevrolet and GMC vehicles are most often requested.

The Chevrolet Silverado stands as the most popular vehicle among members, as it was during last year’s event. It represents 9.1 percent of all vehicle requests.

The second most requested vehicle is the GMC Acadia at 8.4 percent, followed by the GMC Sierra in third at 6.5 percent.