They are all round, black, and made of rubber - but that's where the similarities end. The safety of your vehicle (and you) depends on the tires more than any other part of the vehicle. Those four points of contact between you and the road determine the quality of acceleration, turning, wet traction, and braking -- all essential to a successful drive.
Listen as David Hay explains the importance of buying the right tires:
In fact, the portion of each tire making contact with the road is only about the size of an adult's hand!
Just imagine how little rubber is touching the road for this guy (let's hope he's a professional stunt driver!)
The make and model of your vehicle determine the size, speed rating, and load-carrying capacity of your tires. It's a dangerous gamble to ignore the car maker's recommendations on these requirements. You can see a list of tires recommended for your vehicle here.
There are 3 broad categories of tires: summer, all-season, and winter. Within these groups there are several performance levels. As a consumer, you should decide what your priorities are with regard to wear, longevity, price, and performance. A professional tire adviser will use your set of priorities to inform you of all your options and guide you to the best choice for you.
Manufacturer's warranties vary widely, so be sure to ask about applicable warranties on the tires you are considering. Tires are a major purchase for most consumers. By doing a little research and asking a few questions, you can make that purchase with confidence.