This video shows the moment a Porsche overtook other vehicles at up to 148mph before killing a mum and her unborn son in a crash.
In the footage, Ian Barton can be seen speeding down the wrong side of the road, overtaking lorries in severe weather conditions in Warminster, Wiltshire.
The pub landlord's £72,000 Porsche Cayenne 4x4 whips up spray as he races past vehicles on the A36.
He went on to hit Anna Kirsopp-Lewis's car at more than 112mph, killing the pregnant teacher and her unborn child.
The 62-year-old driver also died from his injuries in hospital five days later, Mail Online reports.


Mrs Kirsopp-Lewis, 34, had been travelling to a midwife appointment ahead of the birth of her second child when Barton smashed into her car.
Gasps were heard from the public gallery as the Salisbury inquest into her death was shown dashcam footage of the black Porsche passing cars at speed.
Witness David Woods, a teacher, said he was overtaken by a black 4x4 travelling at "tremendous speed".


He said: "I can't put an estimate on speed, it didn't take any time to pass me, it felt like it went by like a rocket."
Temporary Sergeant Joseph Sample, of Avon and Somerset Police, said Barton's Porsche had crossed over double-white lines as it had overtaken on the brow of a hill and in the bend of the road in rainy conditions.
He said it was a "prolonged poor piece of driving" before Mr Barton crashed into the rear of Mrs Kirsopp-Lewis's Peugeot 2008 car which was travelling in the same direction.


Wiltshire coroner David Ridley said both drivers died of multiple injuries and recorded a verdict of unlawful killing for Mrs Kirsopp-Lewis.
Mr Ridley said: "The manner Mr Barton drove his Porsche Cayenne can only be described as aggressive, audacious and quite frankly abhorrent.
"It is more likely than not he was in a hurry to get back to his pub but that is no excuse.
"I am satisfied his driving can only be categorised as truly exceptionally bad to enable me to return a conclusion of unlawful killing."