Officials credited Southern California drivers' well-known affinity for classic American cars and hot rods as key to the inaugural auction's success.
In the three-day auction from June 25-27, more than 400 cars from Ford Model Ts to obscure European mini-cars went on the auction block.
The auction, however, wasn't for the collector looking for a pretty Sunday drive who wasn't willing to spend some cash.
At the end of the second day of bidding, the most expensive car to go off the lot was a 1957 Chevrolet Bel Air Convertible, which sold for $110,000.
But by the conclusion of the auction, two cars had sold for more than twice that.
Costa Mesa officials said that a breakdown of how much sales tax revenue they would receive from the weekend auction would not be available for a few months because it goes through the state first.
More than 58,000 people attended the weekend event. Barrett-Jackson will return to the fairgrounds next summer and has added Orange County among its annual events, officials said.