As I've only had these Potenza Sports fitted for about 4 weeks, I think it's way too soon to provide any kind of feedback as to their performance. I drive a 3 year old VW Touareg 3.0 TDi Black Edition that I've had from new. It came with Bridgestone Alenzas all round. After over 3 years and 31000 miles, the back tyres still have 4mm of tread depth left on them - to say I am pleased is an understatement. I've had to obviously replace the front tyres, and just recently, due to a slight mix up with my tyre supplier, I've ended up with Potenza Sports on the front. My car was due into my local VW retailer last week, and as part of the service, they carried out a vehicle health check. To my horror, their report stated that the front tyres only had 6mm tread depth!! Having done some research into this, I have been informed by Bridgestone that new Potenza Sports are supplied as new with only 6mm tread depth. They say that these tyres are made using new 'Enlighten Technology' and that they should provide the same wear as my Alenzas. Time will tell, but I just wondered whether the drivers who have already provided reviews know that their new Potenza Sports are supplied with only 6mm tread depth when new. It may be that I am behind the times - if so, I apologise to all who read this for wasting your time.