Had my first experience with run flats today, £203 worth of experience...I had hoped to get the wear out of the tyres before swapping over to non-run flats but found myself with a puncture, normally repairable with a standard tyre, screw nail through the centre of the tread, the garage said they can't repair any puncture on run flats (true, I don't know?) but being Sunday I was only to glad they had an exact spare on the shelf and I could get going again within the hour...
Really do hate these things, had issues with a slow puncture on my Cooper S before it was traded...I just feel the tyre manufacturers are taking the Pee with these tyres and would never opt to have them other that them being standard fit to BMW these days...so much more expensive, not as good a ride, that said the only saving grace is you can get home I guess but how far you can travel has got to be debatable, my punctured tyre was on the hot side after only 10 miles from the warning light coming on.