One of the most essential parts of your car is its windscreen because it needs to be exceptionally tough to protect the driver but also clear enough to easily see out of.

This is why it is important to look into windscreen replacement services if a crack develops whilst driving a vehicle.

However, in one amusing case of what can go wrong during an unveiling, a truck with glass that was advertised as virtually indestructible was smashed doing an infamous demonstration.

This moment of windscreen infamy was the unveiling of the Tesla Cybertruck, an electric light-duty truck that immediately courted controversy for its somewhat unusual angular design.

The steel balls were meant to bounce off of the glass harmlessly due to the strength of the glass but instead cracked, which presented the opposite impression to the one that was desired.

It was later claimed that the door was hit by a sledgehammer which created a crack in the base of the glass, making it more vulnerable to this type of impact.

This may be possible, as a very similar principle was used in a somewhat dubious demonstration by martial artist Frank Dux where he broke a pane of “bulletproof glass”.

Whilst it is possible that the entire demonstration was faked, an investigation suggested that the pane of glass was made from Lexan plexiglass which would be weakened by cracks caused by a bullet striking it.

The same principle could have been applied in the case of the Cybertruck, where previous impacts weakened the ostensibly strong piece of glass causing it to shatter, but it is unlikely that there will ever be a consensus on this.

As of early 2023, the Cybertruck has yet to be released, and as such, it is unknown exactly how strong its “armour glass” actually is, given that Tesla is struggling to make a windscreen wiper that fits the gargantuan size of the windscreen.