Fire crews were dispatched to reports of a fire at the commercial facility at 1050 Palmetto Ave., according to the North County Fire Authority.
Crews arriving on the scene saw several cars in flames that had spread to an out-building.
Firefighters surrounded the vehicles on fire, attacking the blaze using hose lines. Offshore winds in the area made the fire especially difficult to extinguish, North County Fire officials said.
Crews remained on the scene for several hours to clean up the remnants of the fire long after it was brought under control.
No injuries were reported, and the cause of the blaze is under investigation.