<human>: What are some of the most important things that I should do when buying a car?
<bot>: 
1. Research different makes and models to find one that meets your needs and budget.
2. Take a test drive in the vehicle you're considering.
3. Make sure to get an estimate of what the total cost will be for any repairs or maintenance needed on the vehicle.
4. Ask questions about the history of the car, such as how many owners it has had and if there have been any major repairs.
5. Read reviews from other people who have purchased the same model.