You can find many cars for sale under 1000 dollars with car dealers and private owners. But before getting one, you should know exactly what you are expecting and how much can you afford.
Next, it is better to have in mind at least three models as it gives you a bigger platform to choose from. Another suggestion is to go for newer used cars as you will then get something worth the money you spend. Having a look at the reviews written by different users will give you an idea of which model is best. You should also read consumer reports which will help you decide on a car that is reliable, as these reports will give you first hand information on its performance, repairs done on it, about the previous users, title problems, accidents and service history and whether the car is in perfect shape.
In conclusion, take your time before purchasing cars for sale under 1000 dollars, otherwise you may land up in trouble buying a damaged one.