Comment by bfgeek

To add to this, (from what I remember reading the study at the time) it was basically racing a car around a track (think lots of tyre squealing around corners), and found that the tyre wear was very high. I haven't seen a study which actually simulates somewhat "normal" driving (presumably because the wear is so low driving like that it's difficult to measure). Also didn't factor in a bunch of different stuff - tyres are effected by lots of things; compound, temperature, pressure, surface abrasion, etc. There might be an effect! But this study was very bad.