On which size/car though? Tyres perform differently on different cars but I'm sure you know this anyway.
For reference, mine are 225/45/17 and 245/40/17.
I hear that the E46 Sport Coupe on 17's has been frozen in time and new tyre technology has no effect on them, hence nothing performs better than a Vredstein tyre from about 6-7 years ago.

I suppose it would be a difference of a few months though but I just bought new rears and the fronts still look like new so looks like the next time will be in 15-20k miles time!
Or will be tomorrow either way!