Wear of the tires of E70 with regard to E53

[CS6913]

After several exchanges on French and German forums with owners of X5, it seems very clear that tyres pneumatics wear out much more fast on X5 E70 than on X5 E53.

With my E53, I had crossed 50.000 kilometres (31.000 miles) with Michelin Diamaris before replacing them. With E70 it is impossible to exceed 30.000 kilometres (18.600 miles).

The technology run flat seems cause (more important weight of the tire, the more important heating of the tread) there but do not you think that this wear is also due to a bad regulation of rolling trains how it was the case for the Tuareg or the Q7 ?

Any of you have they information of BMW on this subject?