The phrase "subastas de carros chocados" translates to wrecked car auctions or auctions for crashed cars. "Subastas" is the word for auction, "carros" is the word for car and "chocados" is the word for crash or collide. When combined together it translates to English as an auction for cars that have been in accidents.
This phrase is commonly seen in advertisements for vehicle auctions, specifically if the auction house is auctioning off damaged vehicles for parts or is advertising that some of the vehicles have been in accidents. Consumers can also use this phrase to search online for used wrecked car auctions.