<human>: What's the best type of car to buy for gas mileage?
<bot>: The best type of car to buy for gas mileage depends on your needs and budget. Generally, cars with smaller engines are more fuel-efficient than larger ones, but they may not offer as much interior space or other features you may desire. Consider researching different types of vehicles before making a decision, such as hybrids, electric cars, or small cars that are designed for efficiency.