The following is the difference between P 1 and P7: 1, P 1: This is a comfortable green product. It adopts the latest raw material formula to reduce the rolling resistance between the tire and the ground during driving, thus reducing fuel consumption, saving energy and protecting the environment. High-performance mixed materials and innovative pattern design ensure the grip of tires on dry and wet ground. 2.P7: The first high-performance tire specially developed for mid-to high-end automobiles. Green tires with low noise, low fuel consumption and long life are emphasized. Four wide longitudinal grooves effectively improve the drainage performance when driving in rainy days, providing a comfortable driving experience. The design of solid center tire block plays an excellent role in the safety when turning.