Hi guys, this is my first attempt at using one of these forums so please excuse any errors!
I, too, have a 530d GT with 20 inch 253 alloys shod with Goodyear excellence runflats. Having seen this, and other, forums mentioning issues with these tyres I have been keeping an eye on mine. My car has now done 13,300 miles and the very inside edge on both rears is showing excessive uneven wear compared to the rest of the tread. I have taken my car to a local dealer and they have inspected both tyres and agree that this is not what they would expect to see. They have taken photographs and sent them to BMW Technical dept and they are awaiting a response to the issue. I mentioned that there are various forums discussing this on the internet, most of which seem to highlight this being isolated to the Goodyears. So I am now waiting in anticipation of BMW's reply.