TrueCar announced Monday it has hit a record for dealer enrollment during the first quarter.

The site enrolled 840 dealerships in Q1, which marked the biggest-ever volume gain in the company’s history.

The new additions brought the TrueCar Certified Dealer network to an all-time high of 10,680 franchised and independent dealer partners, which is up 38 percent year-over-year.

"This all-time record expansion is getting us closer to optimal dealer coverage across the U.S.," said Scott Painter, TrueCar's chief executive officer and founder. "Growing the TrueCar Certified Dealer network allows us to satisfy more consumers, more frequently in more places than ever."

Franchised dealer enrollment spiked the most last quarter, with 607 new additions to the site. The number of active independent dealers jumped up by 233.

As of the end of March, there were 9,108 active franchised dealers on the site, while independent dealers were up to 1,572.

"We appreciate our dealer partners' support and are pleased with the record level of dealer interest in TrueCar," Painter said. "Notwithstanding our growth in recent years, we're still in the early stages of building a national, consumer-facing brand. As a result, we look forward to helping our thousands of dealer partners nationwide be even more successful by sending increasing numbers of in-market car buyers to their dealerships.”