More and more people are buying cars. Although the rise in oil prices makes people sigh that it's not easy to afford a car, it has not stopped the enthusiasm and pace of those without cars from buying one. It's just that people's focus has shifted more from considering their own needs to whether or not the car is fuel-efficient. Low fuel consumption and large space, economical, affordable and easy to maintain, have gradually become the primary conditions for people when buying a car. But the amount of information about cars is countless.