Car Buyer's Notebook.com

"Our data shows a clear pattern of growth for those states within close proximity to the Gulf Coast or that have large populations and sprawling urban areas," said Larry Gamache, communications director at Carfax. "Flooded cars are indeed on the move and consumers everywhere are at risk. However, using the information gathered in our database, and new resources like Carfax Xpert, used car shoppers can uncover some of the nasty secrets a car may be hiding."

Water can fatally damage a car's most important features -- like the electrical and safety systems -- causing airbags and antilock brakes to malfunction and effectively turning the car into a ticking time bomb. Under the Carfax Buyback Guarantee, cars purchased with Carfax Vehicle History Reports that do not contain DMV-reported incidents (salvage, flood damage, lemon, odometer problems) may be eligible to be bought back from Carfax.

With used car sales expected to top 44 million this year, consumers should be on high alert for signs of hidden damage and potential fraud.

"In the aftermath of Hurricane Katrina, an unprecedented effort was made by the auto industry to identify, process and report these vehicles, as well as warn consumers about the dangers of flooded cars," added Gamache. "We are ever-vigilant in making sure our customers have the information they need to protect themselves. We urge anyone buying a used car to get a Carfax Vehicle History Report that qualifies for the Carfax Buyback Guarantee and have a mechanic thoroughly inspect the vehicle prior to purchase."