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CrashStats

M4 crash in Wiltshire on 21 November 2012 at 11:49 involving a Vauxhall Astra

A Vauxhall Astra and a Porsche 911 were involved in a crash on the M4 in Wiltshire at 11:49 on Wednesday 21 November 2012. The 48-year-old female driver of the Vauxhall Astra was slightly injured.

It happened in daylight in rain and high winds on a wet dual carriageway with a 70 mph limit, away from any junction.

Severity
Slight
Date
21 Nov 2012
Wednesday, 11:49
Vehicles
2
Vauxhall Astra and Porsche 911
Casualties
1
1 slightly injured

Location of the crash

Police recorded the crash at latitude 51.51719, longitude -2.2774, in the SN14 postcode district.

Map of where the crash happened in Wiltshire

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  • 1 crash
  • Slight

Collision details

Basic information

Reference
201254A529012
Council area
Wiltshire
Police force
Wiltshire
Police attended the scene
Yes

Road and location details

First road class
Motorway
First road number
4
Road type
Dual carriageway
Speed limit
70 mph
Urban or rural
Rural
Trunk road
Trunk road (National Highways)

Junction information

Junction type
Not at junction or within 20 metres

Pedestrian crossing information

Crossing facilities
No physical crossing facility within 50 m

Environmental conditions

Light conditions
Daylight
Weather
Raining with high winds
Road surface
Wet or damp

Enhanced collision data

How severity was recorded
Judged by the reporting police officer
Estimated chance it was serious
3%
Estimated chance it was slight
97%

The 6 nearest recorded crashes

The nearest, 11 metres away, was a slight injury crash on 17 July 2025.

Vehicles involved (2)

  • Vehicle 1: Vauxhall Astra

    Car

    Manoeuvre
    Going ahead
    Travelling from
    South West
    Travelling to
    North East
    Position at junction
    Not at or within 20 metres of junction
    Skidding and overturning
    Skidded
    Leaving the carriageway
    Offside onto central reservation and rebounded
    Hit object off carriageway
    Central crash barrier
    First point of impact
    Offside
    Left-hand drive
    No
    Journey purpose
    Commuting to or from work
    Driver sex
    Female
    Driver age
    48 years
    Engine capacity
    1,598 cc
    Fuel or propulsion
    Petrol
    Vehicle age
    9 years

  • Vehicle 2: Porsche 911

    Car

    Manoeuvre
    Parked
    Travelling from
    Parked
    Travelling to
    Parked
    Position at junction
    Not at or within 20 metres of junction
    First point of impact
    Front
    Left-hand drive
    No
    Driver sex
    Male
    Driver age
    44 years
    Engine capacity
    3,824 cc
    Fuel or propulsion
    Petrol
    Vehicle age
    7 years

Casualties (1)

  • Casualty 1: Driver

    Slight

    Female, aged 48, car occupant, in vehicle 1 (Vauxhall Astra)

Data source

This record comes from the Department for Transport’s road safety data (STATS19), in which police forces in Great Britain record every road crash reported to them where someone was injured. It is reference 201254A529012 in the data published on GOV.UK under the Open Government Licence v3.0, and one of the crashes counted in the Wiltshire road accident statistics for 2012.