Got a call telling me I had won one of four quite appealing prizes, new car, money, TV, etc...but that I had to go in person and listen to a 90 minute presentation.  Was given a claim number, and an address:

Global Destinations
18342 W Creek Drive
Tinley Park, Ill
60477

Also, some moderate pressure, they would then go on to runner-up if I couldn't make it, etc.  

Can someone tell me if this is a scam?

Huge scam.

Got a message saying I won a Loncoln Navigator.  I'm not calling them back.

they just closed their phone on my face. they probably wanted me to call back so they can get a lot of money from dat call

Got a message saying I won a Loncoln Navigator. This same guy has been very persistant over a year. also CId shows 800-203-4969