Heather from Herefordshire writes: "The boar killed by a car, as per the BBC report, was also reported with a picture of the dead beast (which was huge) on a pallet. Anyway, friends of mine, with whom we had just had a meal that evening, were first on the scene of this accident, and comforted the driver who was dazed & had struggled from his car to the gutter, until the ambulance arrived!
Driving advice regarding wild boar (from research carried out in Germany - see below)
Don't swerve to avoid animals - trying to spare the animal's life by shifting to the opposite lane carries a far greater risk of smashing into an oncoming car
If a wild boar appears suddenly, apply the brakes as hard as possible, keep a tight grip on the steering wheel and stay in the lane - in the worst case scenario, a collision with the animal has to be accepted
Driving slowly minimizes the risks, and dipping headlights gives the animal a chance to run away - they get fixated by a strong light beam
Looking to the continent, where they have more experience than Britain regarding wild boar RTAs. For example, a German automobile club has conducted crash tests on life-size model wild boars to highlight the risk of road accidents involving wild boar, which are on the increase in Germany with a rising wild boar population.
Conclusion of the tests: "The collision with a group of wild boars at 80 kilometers per hour (62 miles per hour) needn't be life-threatening for the people inside the vehicle. The front of the vehicle was damaged but the passenger cell remained stable."
Back in Britain, where we are still learning.
Road traffic accidents have claimed the lives of several wild boar in Britain, particularly where a road bisects an area of woodland. All reported accidents involving wildlife are recorded by the police authorities as ‘wild animal’ and not ‘wild boar’ incidents, so exact numbers are not available. In common with observations from the continent, most wild boar are hit during the hours of darkness as they move to their feeding areas. Their dark coats can be difficult to see, particularly on an unlit country road.
Wild boar have no fear of roads and will loiter along the grass verge whilst feeding. On the continent, most wild boar are killed in October, November and December, when the hours of darkness are greatest, visibility on the roads is the worst and male animals become particularly mobile during the rutting season. A similar seasonal trend would be expected for Britain.
No human fatalities have been reported through collisions with wild boar in Britain to-date, and this may be attributed to the lighter traffic and slower speeds used on the winding country roads that the animals most frequently cross. However, wild boar have been hit on A-roads where speeds are greater, so the potential does exist for a fatal road traffic accident involving boar.
Suggestions to reduce the number of wild boar RTA's on main roads include the construction of fencing and wildlife passages. For minor roads intermittently illuminated warning signs, preferably triggered by the crossing animal, are suggested. The need for a public education programme is also stressed.
Deer warning sign in the Forest of Dean in a grass verge rooted up by wild boar - have we got our animal priorities right? (photo Martin Goulding)
For fascinating video footage of wild boar in the Forest of Dean rooting up a roadside verge, view this clip
Wild boar warning on a German road - time to order a few for the UK?
...however, sheep are also permanently on the roadside in the Dean, so hopefully cars won't be driving too fast in the first place - will they? (photo Martin Goulding)
To avoid road traffic accidents and potential loss of human life, some enlightened countries (but not the UK!) are building bridges over main roads and planting them with trees, shrubs and grasses. These bridges thus allow the safe passage of wildlife across the road.
Heather from Herefordshire writes:
Looking to the continent, where they have more experience than Britain regarding wild boar RTAs. For example, a German automobile club has conducted crash tests on life-size model wild boars to highlight the risk of road accidents involving wild boar, which are on the increase in Germany with a rising wild boar population.
Wild boar are a significant traffic hazard. 
Sadly, not all make it. This boar met his maker 