My 225 45 WR 17 Bridgestone Potenza 050's are nearly to the markers on the fronts after 16,000 miles. Can anyone suggest a tyre to replace them - I've been happy with these tyres, but was hoping for a little more life out of them, especially as the pair of fronts will cost £196.00. Are the continentals any better? Is it worth paying the extra for Michelin as they are supposed to wear well?