Even if you live thousands of miles away from where Irene hit, that's no guarantee that you won't run into a storm-damaged car on the used car dealer lot. These cars could be salvages or total losses, with screwed up engines and rotting components. Here are signs to watch out for.
NYT says to look out for these red flags:
* Musty smells. These persist long after the car has been waterlogged. If there's too much deodorant inside, that could be a sign that they're trying to cover the smell up.
* Look for soot, grime, and water damage in all the various nooks of the car.
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http://consumerist.com/2011/09/buyers-beware-of-irene-damaged-used-cars-flooding-dealer-lots.html