Express and carpooling. First of all, Didi Chuxing provides a variety of taxi ways, including express train, Uber, special car and carpooling. Among them, the express train is one of the most commonly used taxi modes, and its price is relatively low, which is suitable for short-distance travel. From the price point of view, express train and carpooling are the cheapest taxi ways among Didi taxis. The price of express trains is much lower than that of special trains and Uber, and you can also enjoy discounts. Carpooling is more economical, because multiple passengers can share a car, and the price can be shared, which is much cheaper than calling a car alone.