What brand new car can I walk out with $19,500?

I asked a previous question about buying a Honda CR Z but that's probably out of reach so If I could walk out the door with a car for only $19,500 that'd be great. ( $15,000 loan 4% interest and $5,000 down payment) What are some suggestion? Some makes I'm interested in is Mazda, Hyundai, Honda, & Nissan. Since I've driven big trucks most I'm interested in compact cars. Maybe like a coupe or hatch back or something like a Veloster.

You should be able to get a Mazda 3 for ~ $17,000.

Here you go:
http://cars.about.com/od/toppicks/ss/Least-Expensive-Cars.htm#showall

Remember, you can always get a lower price than MSRP, although tax and other fees might offest any discount you get.