Just replaced all four tires after 4000 miles of wear. 225/R19 RE050A 88Y on the front and 255/30R19 RE050A 91Y on the rear. All tires worn through to the braiding on the inside edge, rest of tread approximately 7mm. Scary as you cannot see the wear without getting under the car. The tracking was all awry with the king pin angle being over 13 degrees+ on the front tires. 26 readings were taken on the front of which 6 were classified as dangerous This is either a tire design problem or the the BMW suspension is unable to absorb the extra stresses caused by the stiffness of the side wall in a RF tire hence the changes in the tracking. The UK roads are in a terrible state with pot holes, sunken drain covers or badly repaired subsidence. This must contribute to the problem and therefore either Bridgestone or BMW or both are not producing a product suitable for UK road conditions. Today I was informed that a colleagues car, a BMW 1 series has suffered the same problem and all four tires are having to be replaced. This suggests that this is a common problem with BMW and Bridgestone on which despite the dangerous implications both manufacturers are keeping quiet. I will follow this through with BMW and report further