A woman was left with potentially life-changing injuries after being crushed between a Range Rover Evoque and a Mercedes.
The woman, who is in her mid-40s, is believed to have been in another car when she got into an argument with the Evoque driver.
She then got out and the vehicle is believed to have been driven directly at her, trapping her against a black Mercedes minicab on the other side of the road.
Tourist Deepak Anand, 40, from Vancouver, Canada, was on a bus with his wife and son and witnessed the incident.
He said he saw a man trying to pull a driver out of a Land Rover, which then ‘accelerated on to oncoming traffic’ before lodging the woman between the car and a black Mercedes-Benz.
The car also collided with the bus, though there were no reports of any injuries among the passengers.
Mr Anand, a company owner, said police officers arrived shortly afterwards and Tasered the driver as he attempted to get away.
Mr Anand said his son had been shaken by the incident, adding: ‘I’m not sure that we’d choose to visit London as a matter of priority in the future given the safety concerns, particularly with our son.’
The incident happened at around 8.15pm yesterday evening on Hyde Park Corner and police were quickly on the scene.
The woman could be heard screaming in pain until the Evoque was eventually reversed and she was lowered to the ground by witnesses.
The male Range Rover driver, 23, was arrested at the scene on suspicion of affray after police deployed a Taser.
He was arrested on suspicion of GBH and driving while disqualified.
A Metropolitan Police spokesman said: ‘At this early stage it is believed she was the occupant of a car who became involved in a dispute with another car.
‘She had got out of her car before being struck by the other car as it attempted to drive away.
‘An altercation occurred after the collision and one man – no further details – was arrested at the scene on suspicion of affray.
‘He has been taken into police custody after a Taser was discharged during the arrest.’