Laminated glass does not prevent routine stone chip events – if a tiny fragment of the stone becomes wedged in the outer ply or at the laminate interface at a tension point and, coupled with the temperature difference (inside the cabin vs ambient), cabin pressure and body flex that often place higher tensile stress lower on the windscreen, the crack can start propagating very quickly.

That was my experience earlier in the year: I was driving alongside a large fuel tanker on a city road when a tiny stone chip, probably thrown up from under the tanker’s tyres, struck the front windscreen. It took about an 1 ½ hour for the initially invisible crack to spread into an irreparable 30 cm one – effectively right in front of my eyes – and the windscreen had to be replaced. Lesson learned: do not drive anywhere near large trucks or fuel tankers or maintain a larger distance.

But the laminated glass will prevent the structural collapse of the windshield and will also prevent the occupants from being showered with glass shards. It is also more likely that the windshield will withstand an impact from a large stone, leaving a localised and static crack that can be repaired with resin.