I think you need more info. Even something free can cost you something to dispose of. I once received
a free volkswagen 1500 and thank goodness I only lost about 8 hours of time. The kicker will be when they sign their name on the line and can prove there is no lien on it. Like you said, the economy in your area ain't so good.
Your situation may be different, but time isn't something I like to lose.
On the other hand, I know a guy who got a great deal on a clean alfa romeo convertible because it was in the wifes name and she was divorcing the husband who drove it. "Get here within 45 minutes and you can have it for $1000" was what she said. Too much skepticism can be a bad thing.
Um, journalling here... but you need a lot more info.