Recently, the time had come to change my PS3 as they had worn down to about the tread wear indicator. Got around 55,000KM on the set. Perhaps could have got a few more '000 KM out of them, but I drive long distance weekly and realize there are better ways to stretch my money. Anyway, my replacement set is the PS4 and I've since driven around 1000KM on them. Mileage is mostly on NSE highway and I auto cruise at around 130KMH. Initially after replacement, I felt there was slightly more grip around corners and better control. However, fuel consumption reading dropped around 5% from the 12.5KM/L I was seeing before the change. Recently, the reading is back to same as before. So my theory is that the tyre performs differently when being broken in (and opinions of new tyres which are written after brief tests should be read with much skepticism). Cabin noise is slightly less, but could be due to this being a new set of tyres. My old PS3 performed well in the dry and wet, and am expecting the same with the PS4 - will update this review in the future if I find it is not the case. I drive fairly aggressively with my 2.5L Camry and would not hesitate to recommend the PS4 tyres to anyone with a similar driving style.