Look up Publishers Clearinghouse directly, and contact them through an official number or email address. Check to see if the number you got the call from is legit through the net. If it's legit, you can probably call the number back. If things don't add up, contact your local police and report the number so they can see if anyone else has gotten calls like this and investigate.

I made an Edit. Thank you Google

They're con artists don't do it.

I got a call similar to this myself; some randos telling me I won a cruise for two. They wouldn't tell me who they were though, or what I had won this cruise through, so I told them I couldn't afford the expenses and hung up on them.

What these people are doing is called social engineering. They talk and talk, and try to get you interested enough to give them information that they can use to steal your identity. However, most of them are bad at it, and you can catch them at their game if you try to get them to tell you the info. For example Publishers Clearing House applications require a name and address at the very basic; if they can't tell you these things then they are scammers hands down. Also, these people seem to like offering a big money prize and then asking you to pay to receive it; not realizing that taxes and fees can be (and usually are) taken out of the prize.

Social engineering is a two way street. Never give information freely without first getting some in return.

Would be a dream come true if it was real, PCH wouldnt have gone that long with no notice so thats a big no-no flag there, that and i dont ever remember them ever giving away a car