If u looking to buy used car, best way to check with carfax history report.
carfax history report is not free. always ask a private seller for vin number, he/she will give it to you and u can check it out. If he/she refuse give it to you then it means something's bad or wrong about the car. you don't want to buy a lemon car.
I bought a used car last year from craigslist for private seller. turned out it was a deaf person who sold me the car. It's a coincidence.
That car I bought just tiny tiny problem but everything's good so far. I'm happy with this car,
go to
www.carfax.com