The performance you get from your car depends a good deal on how carefully you choose your tires. There are three major types of tires available. They are diagonal or bias; belted bias; and radial. In general, you should never mix radial, belted or bias types. To choose which type is best for you, consider the type of car you drive, the amount of highway driving you do, the quality of roads you drive, the numbers of miles you cover during the year, how you handle your car, and how much extra weight you carry. Until quite recently, belted and bias were considered an inexpensive alternative to radial tires. Radials have now become so popular and offer so much better wear and safety tat most people choose to pay the increased cost, which usually is insignificant. Some tire dealers and consumer magazines mention something called UTQG ratings. The initials stand for UNIFORM TIRE QUALITY GRADING, a quality rating system developed by the Department of Transportation. The grading provides information about the relative performance of tires in the areas of tread wear, traction and temperature. You should be aware that the UTQG rating is assigned by manufacturers and is basically useful only when comparing tires made by the same company. The best way to find the proper tire for the best price is to select a tire dealer that you can trust. A professional can save you time and money by advising you on the best selection.