Murtza Chaudhry, 21, Arbaaz Hussain, 21, Zeeshan Khalid, 20, and Tayyab Siddique, 22, were in a grey BMW at around 5.30am on August 2 when it crashed.
At the opening of an inquest into their deaths it was heard that the BMW overtook an unmarked police vehicle and a marked police car at speed before it crashed.
The unmarked vehicle embarked on a short 34-second pursuit of the BMW but when it rounded a bend the car had crashed into a tree.
The fatal smash happened at the junction with Toller Lane, Bradford, West Yorks., and paramedics pronounced all four men dead at the scene, Bradford Coroners court heard.
Coroners official Bernard Tate said: “In the early hours of Thursday 2 August a BMW overtook an unmarked police vehicle and a marked police car at speed.
“The police cars were not in tandem it was a coincidence they were travelling down the road at the same time.
“The unmarked police car carried out a brief 34-second pursuit before rounding the bend to see the BMW had crashed into a tree.
“All four occupants were pronounced dead at the scene by paramedics.”
Coroner Peter Merchant confirmed the cause of death for all four men was multiple injuries as a result of a road traffic collision after a post-mortem was carried out.
An investigation into the incident has now been launched by the Independent Office for Police Conduct (IOPC).
No family attended the hearing and the inquest was adjourned to a later date.