Group 1 - The core promotion "300 billion unlimited promotion" by Tuhu is significantly impactful, showcasing the company's commitment to providing value to customers [1][3] - The promotion includes various automotive products and services such as tires, maintenance, painting, washing, and waxing, with discounts reaching up to 50% [3][4] - Tuhu's maintenance services feature major international brands like Shell, Mobil, Castrol, Honeywell, and Fuchs, allowing customers to enjoy high-quality services at economical prices [3][4] Group 2 - Tuhu has expanded its service network to over 7,000 service stations, leading the industry and covering all provincial-level administrative regions in mainland China [4] - The extensive coverage includes 318 prefecture-level administrative regions and 1,759 county-level administrative regions, with a coverage rate exceeding 95% [4] - This promotion aims to stimulate consumer activity in the domestic automotive service market, making it accessible for car owners nationwide [4]