Edmunds.com is a great resource for researching used cars. It will give you specs on the car, ratings, dealer price, private party price, and trade in value.
Narrow down what kind of car you are looking for, with what options, and what years, mileage.
Look on www.craigslist.com www.carpsoup.com www.autotrader.com
Those are the best ones in the Cities. I’d avoid car dealers in this price range, they’re not making any money, and usually are aiming for the financing. In addition, it’s much easier negotiating with a car owner, who has about as much experience as you, than someone who does it for a living.
If he wants to spend 5,000, look at vehicles up to about $6,000 or so. Right now the market seems really depressed in used vehicles. Plenty of people trying to get rid of their cars, and not a lot of takers, at least in this range. Lowball the owner. Be nice, be pleasant, but ask him if he’ll go lower. If he has an asking price of $5000, he might say, well, I’ll go down to $4500. This is just the start of negotiations. Now you know he’ll take $4500. I’d counter with 3750, and we’d settle somewhere around 4000-4200. This may be a little much for a young kid to try, but who knows. When it’s his own money, he might take a lot of interest in the situation. Play up the “This is my first car”
After test driving the vehicle, taking it to a mechanic that you trust, and negotiating the price, you are ready to transfer the title. The seller fills out the title, takes a small corner of the title with your name and address on it, (He’ll send it to the DMV) You take the title and a copy of your insurance to the motor vehicle division-you can find a close location from this site. You have to pay a fee to transfer the title, and sales tax.
http://www.dps.state.mn.us/DVS/
Good luck.