Three teenagers who posed as delivery drivers so they could steal $4.3million of cryptocurrency were caught a mere three hours later after posting their crimes on Snapchat.

The boys - aged 16 and 17 - filmed their getaway after fleeing the scene in Hoxton, London in the victim's BMW X3.

They had tricked their way into the flat after travelling down from Sheffield -threatening the occupant with large knives and forcing him to hand over the digital cash as well as his car keys.

The victim reported his car as stolen and police were soon alerted when it passed an automatic number plate recognition camera on the M1 in Northamptonshire, less than three hours after the break in.

Faris Hassan, now 18, attempted to escape police - reaching speeds of 100mph - but the car was stopped on the M6 in Warwickshire.

The three defendants were sentenced to a combined total of 16 years in youth detention on November 7, last year at Sheffield Crown Court.

New footage has now been released of the failed stunt.

One of the crooks can be seen posing at the front door with a parcel delivery in hand.

Meanwhile, a hooded accomplice runs through the back gate and the victim is threatened at knife point into transferring his cryptocurrency.

The trio then make off with the stolen cryptocurrency in the victim's car.

In a video uploaded to Social media the teenagers can be seen celebrating - prematurely - with vapes in hand.

One says: 'New whip (car) and that yeah.'

Another adds: 'Everyone that doubted us fam.'

But just moments later their fantasies are dispelled as the driver lets out a scream after spotting a police car.

The gang are caught, forced out of the vehicle and swiftly arrested.

Hassan, of Sheffield, pleaded guilty to dangerous driving, aggravated burglary, transferring criminal property, theft of a motor vehicle and driving without insurance or a licence. He was sentenced to 67 months in custody.

Mikyle Bethune, now 18, of Sheffield, pleaded guilty to aggravated burglary, theft of a motor vehicle and possession of a knife. He was sentenced to 46 months in custody.

A 17-year-old boy, who cannot be named for legal reasons, pleaded guilty to aggravated burglary, possession of criminal property and theft of a motor vehicle. He received 80 months in custody.

The victim's crypto was recovered within 72 hours and returned two weeks later. 

Detective Constable Jonathan Leung, who led the Met's investigation, said: 'This case is a clear example of how the suspects thought posting their criminal exploits on social media would build them a following, however all it built was the case against them.

'Aided by specialist assistance from the Met's Economic Crime Command, and with collaboration from police services across the country, detectives have worked tirelessly to ensure that such brazen and reckless offending will not go undetected.'