I've been looking for a "classic" car on Craig's List for a couple months now. My opinion is that it's totally worthless for anything that is worth more than $15-20.
If the seller isn't running a scam, they're scared to death that they're being scammed. Last week I responded to two ads for cars in two different cities 1500 miles apart. The email replies I got were word for word, three paragraph stories of widows selling their late husband's car and that they left the car with a broker while they recovered from thyroid surgery at their late parent's house in Nebraska. Yeah, right...!
Going forward, unless it's a dealer, if it's not out in front of the house with a For Sale sign, I'm not interested. Buying anything there is too damn much work.