It won't be long before my original front pads and discs have to be replaced. When an independent garage replaced the rears on my 1.6 u2 crdi FD hatch they told me that I would have a choice of (I think) 280mm or more expensive 320mm discs at the front. I presume the originals are 320mm. Has anyone else been given this choice and changed from one size to the other? I would be interested to know if one size would last longer than the other, if braking performance would be noticeably different and if there are any other factors I should consider. The original rears were replaced at 190,000 miles and the car is now approaching 200,000 miles on its original front pads and discs.