It won't take long for cars damaged by the flood waters of Hurricane Sandy to make their way to the west coast where many will be sold to unknowing used-car shoppers. The Oregon Department of Motor Vehicles urges you to be on the look-out for these cars which can have damage to electronics that allow the car to operate properly.  David House with the DMV says it's best to have a mechanic examine a used car before a purchase. Also, look for signs of water damage on upholstery and run the “VIN” through Carfax or Experian or have your insurance agent check it out.