My 3rd and last BMW was a 530d M sport with run flats, and I hated it. The ride was awful, and I should never have gone for the Sport version, but the previous model was beautiful to drive - but had conventional tyres. The second last straw was a blowout in the fast lane of the M5 at 5.00am one morning on the way back from Birmingham airport. The car did stay straight, but the tyre had shredded, and was not driveable. There had been no warning from the sensors. Of course, with no spare or spacesaver I had to call a recovery service.
The last straw was a split alloy due to the state of South Glos' roads.
I will never have run flats again, and will avoid low profile tyres on our third world roads.
