However, in the future, when purchasing an automobile, avoid sellers who attempt to get you to sign a "sold as seen" document. That should raise the most alarm bells in your head. Their message is essentially that "don't bring it back to us" because they know the automobile is in bad shape. While it's common practice for private sales to include an implicit sale, I've never heard of an individual selling their automobile requiring a buyer to sign a document—unless, of course, it's a dealership attempting to pull a fast one.