A motorist has admitted driving at a speed of 172mph on a road in Oxfordshire with a 70mph speed limit.
Timothy Brady was disqualified from driving with immediate effect
Timothy Brady was driving a Porsche 911 along the A420 near Kingston Bagpuize when he was caught in a routine speed check, Oxford Crown Court heard.
Brady, 33, of Harrow in north-west London, will be sentenced in September.
The speed is thought to be the highest recorded in the UK for such an offence. Road safety charity Brake described the case as "shocking".
Brady denied a further charge of aggravated vehicle taking.
Rachel Burr, campaigns officer for Brake, said: "The idea that someone was driving at that speed is shocking and horrific.
"The chances that a person will be able to control a vehicle at that speed if something unexpected happens is slim.
"It is extremely selfish - they don't have the right to put other people's lives at risk."
John Melling, who is clerk of Kingston Bagpuize with Southmoor Parish Council and has lived in the village for 14 years, said: "A lot of people don't even observe the 30mph speed limit through the village.
"Driving at 172mph is quite amazing. If you want to do that speed why not go to Silverstone?"
Thames Valley Police said they would not comment on the case until after Brady was sentenced.