Have to say for a premium tire, I would expect a decent wear ratio, my vehicle has just completed 7000 miles and tread is at 1.8mm, I find this disgusting, have contacted Continental who’s answer was that ‘we do not guarantee wear’ whilst I appreciate that is the case with all manufacturers, I would like to think they take the issue seriously, this could be a compound issue, so much so could be a safety issue! One thing I would say is that they have lost a customer in me, never again would I buy Continental tires - my driving is 50/50 long and around town, no country roads, no race track, I and my wife are considerate drivers.