With the accelerating speed of automobile updating, second-hand cars are highly favored. According to the statistics of Beijing Used Motor Vehicle Trading Market, in 2007, the trading volume of used cars in Beijing was 342,000 vehicles, increasing by 6% over the previous year. How to select a car with reasonable price and reliable performance from a large number of second-hand cars? Recently, I visited the Beijing second-hand car market and interviewed some industry insiders and consumers.