3 cars I would recommend.
1999 & UP Toyota camry and corolla, 2002 up accord
5000 might get you high mileage vehicle, maybe over 100k miles.
My suggestion is either Honda or Toyota. These cars are reliable and great MPG.
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I bought my 1997 Toyota camry for 3000 since 2006
My camry is 220k miles and its still good with original engine and transmission.