To choose the right size and type of Fullway tires for your car, you need to check the tire information on your vehicle's door placard, owner's manual, or tire sidewall. You need to look for the tire size, which consists of the width, aspect ratio, diameter, load index, and speed rating. For example, 205/55R16 91V means the tire is 205 mm wide, has a 55% aspect ratio, has a 16-inch diameter, has a 91 load index, and has a V speed rating. You also need to look for the tire type, which indicates the intended use and performance of the tire. For example, P means the tire is for passenger vehicles, LT means the tire is for light trucks, and M+S means the tire is for mud and snow. You must match the tire size and type with your vehicle's specifications and requirements.