The Met Police Commissioner Bernard Hogan-Howe and the Mayor of London Boris Johnson are appearing next to seized and crushed cars in a graphic warning to rogue motorists, demonstrating what could happen to your vehicle if you drive illegally in the capital.
The event takes place on the same day the 14th day of action under Operation Cubo gets underway across London.
Hundreds of officers taking part in a coordinated series of operations targeting those drivers who are more likely to be involved in criminal activity, five times more likely to be involved in collisions and less likely to have their vehicles in a road worthy condition.
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The 24-year-old was unarmed and the incident is not being treated as terror-related.
Some platforms have been taken out of service with disruption expected to continue until the end of the day.
The Met Office has extended its weather warnings for snow and ice to cover vast swathes of the country, including London and the South East.