May I ask how the run-flat tyres saved your lives?
OT, I saw this on FB and wonder whether that spot is an accident magnet. Some great roads in RSA. I've been a happy passenger to enjoy the views.
Fortunately it was nothing so James Bondish that I had to evade criminals, although I can see run flats could help in such a situation. There are elements here who have been known to put rocks and other obstacles in the road with a view to hijacking you, or merely damage your car for fun...

I have written about it on this forum in another thread, but the life saving event was hitting a pothole at fairly high speed. It would undoubtedly have caused a catastrophic blowout on normal tyres and with zero run off area on the road, I would have very likely headed off into the scenery...The runflat remained intact, although badly shredded on the sidewall, and kept us on the island. I hobbled at low speed for about 50 kms to the nearest town where fortunately a new tyre was put on.
The missus has normal tyres on her Giulietta and due to several pothole replacements (fortunately all at low speed), we're thinking that we'll put run flats on her car when they next need replacing. Is this wise? Are there implications? I'd be grateful for some advice on our thoughts on this.
Our motorways are still superb but sadly the moment you leave them onto even "A" roads, you can come across potholes and many are not small divots either, but can be donga sized!! One of the reasons many drive bakkies and suvs with small rims and chunky tyres.
That spot in Herolds Bay is not an accident magnet but rather a suicide spot. It's a lovely viewing point but it is easy enough to drive over the edge. The municipality want the road closed but the public (presumably both those with suicidal thoughts, as well as those who dont) have objected to its closure.