Founded in April 2014, Renren is the first to enter the used car market in C2C mode. It has developed into a comprehensive car trading service platform integrating used cars and new car transactions, financial services and after-sales services. For second-hand car transactions, Renren provides free door-to-door valuation, sales, replacement and other services for the majority of car owners. In order to strictly control the quality of the car in the sale, the Renren car has established a 249 test standards and a dual detection mechanism through a self-built professional appraisers team, and has reached a cooperation with the China Automobile Dealers Association to become a national standard for second-hand car testing. The industry's first strategic partner in the “certification” certification, the layer of protection is only for the rest of the car. At the same time, for the buyer, the Renren car provides a series of after-sales guarantees such as 14-day returnable car, one-year/20,000-kilometer core component warranty and 200 million yuan guarantee, leading the industry change. In April 2018, Renren was awarded a new round of financing by the Goldman Sachs Group, Tencent, Didi and other investments of $300 million. This is the third time that Tencent has added a Renren car. Previously, Renren had won a strategic investment of 200 million US dollars, and then carried out in-depth cooperation in ecological co-construction, technology, and operation.