Why would you even want to go through the hassle of this? I'm honestly curious.
I would recommend just getting a rental from one of the big companies. You can get a Chevy Impala sized car for less than $1,000 per month. You're going to spend more than that on a new car, plus taxes, plus insurance, etc.... Then you have to worry about selling it again before you leave. Which in our economy would not be easy. Dealers don't usually take a used car in unless you're buying a new one.
Buying a car just seems like an overall bad idea considering used car prices are through the roof right now.