More and more people are buying cars. Although the rise in oil prices makes people lament that it's not easy to own a car, it has not stopped the enthusiasm and steps of those without cars to buy one. It's just that people's focus has shifted more from considering their own needs to whether 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 to buy a car. However, there is an overwhelming amount of information about cars.