It was reported in October 2011 that a Ford Focus, a family car was subjected to a 120mph (192 kmh) crash test into a solid concrete wall.

The usual crash test speed is a mere 40mph, but the car show Fifth Gear upped the ante 3 times over.

A winch catapulted the car forward, smashing it into the wall, and was destroyed on impact, when in just 60milliseconds, its speed dropped to zero, subjecting the dolls inside to forces of up to 400g.

At the very least, this showed the risks of speeding.

Source
Daily Mail, 24 Oct 2011