More and more people are buying cars. Although the rise in oil prices makes people sigh that it's not easy to maintain a car, it has not stopped the enthusiasm and pace of those without cars to buy one. Now, instead of just considering personal needs, people are paying more attention to whether a car is fuel-efficient. Low fuel consumption, large space, economical, affordable maintenance - these have gradually become the primary conditions for people when buying a car. However, there is an overwhelming amount of information about cars available.