A pair of tyres please. My current 255/45/ZR18 Bridgestone Potenzas are down to 2MM on the rear, my main requirements seems to be hard wearing as these have lasted since August last year, and a mere 9000 miles. Not bad I suppose, I have a heavy RWD car and I do tend to throw it around corners I'd have liked a bit more than 9k though. The fronts are not so bad, the O/S/F is only down to 5mm which surprised me, all four tyres were new last August as I said. The N/S/F was replaced a while back due to a puncture..... Obviously the cheaper the better, that said, I'm happy to pay "extra" for anything thats worth it. Cheers.