I'm at 32,000 and they still seem to have decent tread left. I don't really like them but hard for me to replace tires early. I'm used to our old minivan chewing through tires in 30,000mi.
do you know what the OEM tires are on your car, thats amazing mileage47K mostly highway miles on mine with about 7/32 left. Ordinarily, I would have expected to get rid of the OEM tires sooner, but I have been very surprised by the treadwear and the general performance - quiet running, good wet and dry traction, decent in our recent snow. Since a new set of tires is 1000ish, I haven't been rushing to replace them.