It will pay you to shop around, you can get some very good deals providing you can wait. One important thing that you must remember is that each illegal tyre on your car will cost you three points and a hefty fine. If you get six points or more in your first two years, you will need to retake both theory and practical tests again.

All of the picture links on this page will take you main dealers. You may find a better deal elsewhere, but theses sites will give you an idea of cost.

1.6mm is the legal minimum tread depth on your tyres, this is the minimum. A word of advise, tyre tread disperses water and gives you grip. In winter, is 1.6mm enough to keep you and your vehicle safe?
Tyres can vary considerably in price depending on the rating of your vehicle.