A devastating flood hit Chennai late last year, and over 40,000 vehicles went off the roads because of the incident - now used car dealers are making a kill buying the cars from auction lots for cheap, according to a BBC report . Many lucky buyers report buying the latest Porsche from the damaged car auctions for a cheap $7,000, while others bought new model luxury cars such as Jaguar, Range Rover, BMW, Mercedes, and Audi among others for a third or fourth the market price.