A 31-year-old driver has pleaded guilty to causing the death of one passenger and serious injury to two others when his Mercedes vehicle overturned and crashed on a major motorway near Heathrow Airport in west London.
Aadil Sabir was scheduled to stand trial at the Old Bailey on Tuesday over the fatal collision. Instead, on Thursday he entered guilty pleas to causing the death of William Bailey by dangerous driving and to causing serious injury to Azfur Khan and Hamad Zaman. The crash occurred at junction three of the M4 in Hayes on 29 October 2023.
Sabir, who is from Pentre Gardens in Grangetown, Cardiff, appeared by video link from Wales to enter his pleas before the court.
What sentence does Sabir face?
Judge Simon Mayo indicated that Sabir faces a substantial prison term. The judge warned him of a "lengthy custodial sentence" and ordered that a pre-sentence report be prepared. A sentencing hearing has been scheduled for 23 November. In the interim, Sabir has been granted conditional bail and an interim driving disqualification has been imposed.
What happened in the crash?
Emergency services were called at 11:39 to the eastbound carriageway of the M4 near the Cranford Park Interchange following reports of an overturned vehicle. Officers discovered that four people had been travelling in Sabir's Mercedes car, all of whom sustained injuries in the incident.
William Bailey, a rear passenger in his 20s, was pronounced dead at the scene. Two other men, also in their 20s, were transported to hospital with life-threatening injuries. A fourth occupant was treated at the scene for minor injuries before being taken to hospital for further assessment.
The crash caused significant disruption to traffic approaching Heathrow Airport. Following the incident, the Metropolitan Police appealed for witnesses and dashcam footage from motorists who had been in the area at the time.
What did eyewitnesses capture?
Social media posts shared in the immediate aftermath of the collision showed the vehicle engulfed in flames at the roadside, with bystanders attempting to extinguish the fire using a portable fire extinguisher. Additional footage showed firefighters working to fully extinguish the blaze once they had arrived at the scene.
Context of dangerous driving cases
This case is part of a broader pattern of serious road traffic incidents involving dangerous driving across the United Kingdom. Earlier in 2026, a van driver admitted causing the death of a highway worker on the M23 near Crawley and faces sentencing in September. In another case, a teenager was sentenced to 17 years imprisonment after driving into a couple outside a Cardiff nightclub, resulting in one death. Additionally, two brothers were found guilty of causing death and serious injury in a racing incident near Welshpool in 2024.
Key Facts
- Aadil Sabir, 31, pleaded guilty on Thursday to causing death by dangerous driving and causing serious injury by dangerous driving
- William Bailey died at the scene; two other men were hospitalised with life-threatening injuries
- The crash occurred on 29 October 2023 at junction three of the M4 in west London near Heathrow Airport
- Sentencing is scheduled for 23 November, with the judge warning of a lengthy prison sentence
- Sabir has been granted conditional bail pending sentencing and has received an interim driving disqualification







