if you want one that's real cheap don't be afraid of rust buckets. you could probably get a rusted through compact or subcompact for anywhere between 1k and 4k, depending on the severity of the degradation. sure, they're unsafe and their days are numbered, but they're cheap and they get the job done. just make sure to perform the most basic maintenance possible regularly: get your tire pressure right, replace brakes when they become worn and make sure the machine has all the fluids it needs. oh and these cars can be really shitty so make sure to test stuff like lights and signals, seatbelts, wipers, door locks and the radiator before trusting it for longer trips. i've had my engine overheat on me before because of a busted radiator, not fun. try to look for one from a manufacturer who has a reputation for long-lasting engines, like toyota or honda. keep your standards low and you'll have a nice life. good luck with your car hunt, hope you'll find a sick ride.