<human>:  what should i look for when buying a used car?
<bot>: 
1. Look for signs of wear and tear such as scratches, dents, and rust.
2. Check for any warning lights illuminated on the car's dashboard.
3. Ask for the car's service history to determine if it has been properly maintained.
4. Make sure all of the car's features are in proper working order.
5. Take the car for a test drive to make sure that it performs as expected.
6. Have a qualified mechanic inspect the car to make sure it is safe and free of mechanical issues.