My first car did this rattle thing when you drove it past 15 miles. The windows would shake. Sometimes, the lock would stick and I had to "shake" the door to exit. One time, I turned the car on with the wrong key. The brakes were loose, where I had to slam on it to get it to stop. The backseat chairs were filled with stains. There were multiple dents on the side - I lived in a bad neighborhood so random dings all the time from other drivers.
When I finally upgraded, I really felt like I had to pay THEM to take it. So when they made me an offer like $400, I said yes immediately. It was their problem now.