It’s the largest turnout of cars Texas’ Royal Purple Raceway has seen in its 30 years of operation. Except it’s no drag race at all.

In the wake of Hurricane Harvey, which ravaged the Houston area with record rainfall and flooding, RPR president and general manger Seth Angel offered his 400-acre property to the rebuilding cause — specifically, as a venue to temporarily store some of the estimated half a million vehicles that were damaged or destroyed by the floodwaters while insurance adjusters assess the damage and process claims.

According to Autoweek, Angel procured a contract with Copart, an automotive auctioneer which specializes in damaged vehicles, to serve as a central site for the insurance claim process. In order to do so, Royal Purple Raceway cancelled the remainder of its drag racing schedule. Per the agreement with Copart, the vehicles are to be cleared by the end of February to allow for normal racing operations. The NHRA SpringNationals will be held at the Baytown track on April 20-22.

Over the Labor Day weekend, wreckers began arriving by the hundreds, turning the Royal Purple Raceway into one of the world’s largest parking lots— an estimated 10,000 vehicles were delivered by that Monday, and some sources said as many as 100,000 vehicles could eventually fill the areas usually reserved for drag racers and spectators.

Royal Purple Raceway is not the first drag racing venue to aid in hurricane relief; New Jersey’s Old Bridge Township Raceway Park served in a similar capacity when Hurricane Sandy struck the New York and New Jersey region in 2012.