On this day, 68 years ago, on December 28, 1957 (November 8, 1957, the first domestically produced three-wheeled vehicle was born. On December 28, 1957, the first domestically produced three-wheeled vehicle was tested on the roads of Shanghai. This three-wheeled vehicle, which is made entirely of domestic raw materials, is mainly produced by three factories: Shanghai Internal Combustion Engine Distribution Plant, Shanghai Automobile Chassis Factory, and Shanghai Automobile Decoration Factory, and organized many small factories in collaboration. This car absorbs the advantages of a variety of cars and is designed by itself based on the specific transportation conditions of my country. It is small, light and flexible, and can carry a load of one ton. The car is equipped with a new 30-horsepower gasoline engine, which consumes less fuel and costs only 3 cents per kilometer. The car is also equipped with special shock absorbers to drive on rough roads. During the test drive, the car was running at full horsepower and walked steadily without swaying at all. The day before the official test run, the car had undergone a mountain climbing test. It carried 21 people and successfully climbed up the three-story roof from the ground floor of the loading factory along a 15-degree ramp.