205/55R 16. Buick official website shows that the high-end Buick Hideo models use Goodyear ASSURANCE series, and the tire model is 205/55R 16, and the individual price is 500 yuan. The flattening rate of the tire section is 55%, that is, the height of the section is 55% of the width. The letter R stands for radial tire, and 16 stands for rim diameter 16 inch. Buick is a car brand sold by General Motors in the United States, Canada and China. It is sold in North America, China, CIS countries and the Middle East.