A pair of motorists have been banned from the roads for three years after being caught driving in close convoy at 144mph.
A police spokesman said the safety camera operator who caught the two men on the A19 south of Middlesbrough last November had been "utterly astounded" by the speeds of the Ford Focus RS and Mitsubishi Lancer Evo, adding that it could have had "catastrophic" consequences.
Having previously admitted dangerous driving, Daniel Scott Richardson, 21, of Batley, West Yorkshire, and James Burrows, 26, of Methley, Leeds, were both banned from driving and given suspended four-month jail terms when they appeared for sentencing at Northallerton Magistrates' Court.
They were also each ordered to do 300 hours of unpaid work and fined £85 with a £60 victim surcharge, North Yorkshire Police said.
Dave Brown, the force's mobile safety camera manager, said the sentence highlights how seriously "such appalling driving" is taken by the criminal justice system.
He said the cameras had shown the vehicles "travelling in close proximity at extremely high speed".
He added: "Any error, no matter how minor, could have been catastrophic for the two drivers, their passengers and other road users."
Copyright Press Association 2014