The family of two brothers killed in a road crash have been told they may never know why they died.
Balrik Singh Dhesi, 30, who was driving at the time of the accident, and Jatinder Singh Dhesi, 23, both of Whitworth Way, Irthlingborough, died at the scene of a crash on the A6 on December 30, 2012.
The pair were well-known locally and there was a huge outpouring of grief after their sudden deaths.
An inquest into their deaths at Kettering Magistrates Court last week heard how witnesses saw the wheels of their Vauxhall Tigra lock up before the car span out of control and into the path of an oncoming Fiat Punto.
The inseparable brothers, known to friends at Rik and Jay, were driving north on the road to a New Year celebration at their Sikh Temple in Kettering.
They were in a queue of traffic behind an articulated lorry and another car when witnesses said both cars made attempts to see if the road ahead was clear for an overtaking manoeuvre.
But as the Dhesis’ vehicle made a gradual move out towards the centre of the road, it braked suddenly, causing it to spin into the southbound carriageway and into the path of the Punto.
Driving the Punto was Amy Dalton, of Durham, who was driving to Bedford with a friend.
She said: “I saw a vehicle come out from behind a dark coloured car.
“It’s movement was jolty.
“I moved to my left. The car just spun out in front of my lane.
“I braced myself for the impact. There was a tremendous bang.”
Miss Dalton received minor injuries in the accident but her passenger was taken to hospital in an air ambulance after breaking several bones.
The Dhesi brothers were pronounced dead at the scene after suffering massive internal injuries.
Accident investigator PC Andrew Jeavons said that the camber of the road caused the brothers’ vehicle to spin when the brakes were applied suddenly.
Recording a verdict of accidental death, coroner Ann Pember said that she could not say for certain what had caused Rik to brake suddenly, but said it could have been that he had realised too late that it was not safe for him to overtake.
Following their death, family and friends planted an oak tree in memory of the pair.
Jay was a talented American football player.
He had been coaching Northampton University side Northampton Nemesis, and played for Peterborough Saxons.
Rik, a delivery driver for FedEx, had a wide circle of friends.
The A6 is a designated dangerous Red Route and action has been taken to improve its safety between Finedon and Burton Latimer after a series of accidents.
Traffic calming measures have been added by Northamptonshire County Council, including narrowing the lanes and adding hatching and red paint.
Police captured 36 motoring offences during 90 minutes of filming on the road last summer.