My daughter sent me this picture last night.
20180111Puncture.jpg 32.81KB 0 downloads
Just before she got home the TPMS told her she had a problem with a tyre. She made it onto her drive and on getting out of the car could hear the sound of escaping air.
She's had to take a day off work today. She had some difficulty finding a matching tyre, but found one eventually together with a mobile tyre fitter who was due to visit her this afternoon.
I haven't spoken to her this evening but I'm assuming all is now well.
The car is a BMW SUV. She bought it new last March so the tyre will not have a huge mileage on it. It's not (I believe) a run-flat but I assume it will not be cheap to replace.
Incidents like this indicate how much more inconvenient (and costly) it is to deal with a "serious" puncture now that cars do not have a spare.