It helps buyers to deal directly with sellers. The direct-sale model, which removes the middlemen's chain, cedes the price differentials that were originally generated by the middlemen's layers to the buyer and the seller, achieves a win-win situation of "sellers, buyers, and provinces". In order to improve/enhance the fluid experience of both buyers and sellers, the vehicle's source is restricted by the fact that the seller's vehicle on the platform can only be a personal second-hand car within 150,000 kilometres of the 8 years. At the same time, it ensures that every vehicle on the platform is supported from the source by rigorous testing by the 5d system. With high-quality services and advanced trading models, the growth of the stock of cars has been rapid, with more than 5,000 employees. In 2015, the cumulative sale of automobile treasures exceeded rmb 3. 7 billion; in the area of post-services, more than rmb 200 million was provided to users. In march 2016, it announced the completion of the a-wheel financing of $204. 5 million, resulting in the a-wheel financing record for the used-car industry. The second-hand electrician platform has announced a total of over $250 million in a-wheel financing, which is a unique scale for a-wheel financing in this area. The ceo yang ho-gwan announced the official launch of the famous movie star sun hong ray as the brand name advocate, and announced that he would continue to invest 1 billion yuan in the next year at the brand level, building on the brand influence of the spokesperson sun red ray, to further strengthen the role of the second-hand car industry promoter in china. Accompanying is a product of a network focusing on the market for used cars and after-car services in the o2o field. Accompanying the car to remove all the middle links in order to achieve c2c trading of a one-stop service from which the platform collects 3 per cent of the commission, less than 20 to 30 per cent of the commission at the bottom of the line. In terms of catch-up vehicles, it was stated that the good car project saved a total of 15 per cent of the transaction costs to buyers and sellers, of which the seller operated at 8 to 10 per cent higher than the market price, while the buyer saved 5 to 7 per cent of the purchase cost. At present, the value of cars has reached more than 200 cities throughout the country。