Serious Mercedes Cla Class crash on the A421 in Buckinghamshire - 16 Nov 2025
Accident reference 2025430584980
Accident summary
On Sunday 16 November 2025 at 04:04 a serious collision occurred near A421, B4033, Buckinghamshire involving 1 vehicle (mercedes cla class) and 1 casualty (1 serious) Weather at the time was recorded as fine no high winds. Road surface conditions were wet or damp. Lighting was described as darkness - no lighting. A police officer attended the scene.
Key details
- Posted speed limit: 60 mph
- Road type: Roundabout
- Setting: Rural
Location
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Collision records on this page come from the Department for Transport's STATS19 data, which is published once a year, so a crash from today will not appear in the historical data yet. For today's incidents, check live A421 closures today.
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Basic Information
| Accident Reference | 2025430584980 |
| Police Reference | 430584980 |
| Date & Time |
Sunday
|
| Severity | Serious |
| Vehicles Involved | 1 |
| Casualties | 1 |
| Police Force | Thames Valley |
| Police Officer Attended | Yes |
Road & Location Details
Junction Information
| Junction Control | Give way or uncontrolled |
Environmental Conditions
| Light Conditions | Darkness - no lighting |
| Weather Conditions | Fine no high winds |
| Road Surface Conditions | Wet or damp |
| Carriageway Hazards | None |
Enhanced Collision Data
| Injury Based Classification | Yes |
| Adjusted Serious Casualties | 1 |
| Adjusted Slight Casualties | 0 |
Nearby or similar collisions
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SlightVehicles (1)
Vehicle 1
Vehicle Information
| Type | Car |
| Make/Model | MERCEDES CLA CLASS |
| Engine Capacity | 1332cc |
| Fuel Type | Hybrid electric |
| Left Hand Drive | Yes |
| Manoeuvre | Going ahead |
Driver Information
| Age | 25 |
| Sex | Male |
| Journey Purpose | Not known |
| IMD Decile | 10 (1=most deprived, 10=least deprived) |
Casualties (1)
Casualty 1
Basic Information
| Class | Driver or rider |
| Severity | Serious |
| Type | Car occupant |
| Age | 25 |
| Sex | Male |
| Associated Vehicle | Vehicle 1 |
Additional Details
| IMD Decile | 10 (1=most deprived, 10=least deprived) |
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Data Source
This data is from the UK Department for Transport's STATS19 road safety dataset, available under the Open Government Licence v3.0.