Insurance
What Happens When a Supercar Is Written Off
The UK categories are A, B, S and N, and have been since October 2017. Which letter a car receives decides whether it can return to the road and what it is worth afterwards.
A total loss is an economic decision rather than a mechanical one. The insurer compares the cost of repair against the settlement it would otherwise pay, and if repair loses, the car is written off and given a category. In the United Kingdom those categories are A, B, S and N, a system introduced by the Association of British Insurers in October 2017 to replace the earlier A, B, C and D.
The four categories
| Category | Damage | Can it return to the road | What happens to it |
|---|---|---|---|
| A | beyond salvage | no | car and every attached part crushed |
| B | beyond repair | no, and cannot be re registered | parts reclaimed, shell crushed |
| S | structural, repair not economical | yes, after repair | chassis or framework damage, extensive repair |
| N | non structural | yes, after repair | cosmetic or mechanical, no specialist inspection required |
The distinction that matters most is between B and S. Both describe a car the insurer will not repair. Only one of them permanently ends the vehicle's life on the road. The difference between them is a judgement about the structure rather than about the size of the bill.
The older letters are still encountered on cars written off before 2017. C corresponds to what is now S and D to what is now N, and a history check on an older car may return either vocabulary.
Why an expensive car is written off more easily than it looks
The write off decision compares repair cost against settlement value, and on this class of car both sides of that comparison behave unusually.
Repair costs are high because panels are frequently composite, structures are bonded or riveted rather than welded, and paint work is specialised. A single corner impact can involve suspension components, a wheel, a panel, sensors and calibration.
A worked comparison shows how much the wording moves the outcome. Take a car with a repair estimate of 130,000. Under an agreed value policy set at 250,000 the repair is 52.0 per cent of the settlement. Under a market value settlement of 190,000 on the same car, it is 68.4 per cent, and under 170,000 it is 76.5 per cent. The car has not changed and the repair has not changed. Only the denominator has.
| Settlement basis | Sum | Repair as a share | Owner's position |
|---|---|---|---|
| Agreed value | 250,000 | 52.0 % | 120,000 above the repair |
| Market value, higher | 190,000 | 68.4 % | 60,000 above the repair |
| Market value, lower | 170,000 | 76.5 % | 40,000 above the repair |
Those percentages are arithmetic on illustrative sums rather than a published threshold, and insurers do not publish a single write off ratio. The direction is what carries: every reduction in the settlement figure moves a borderline repair towards a write off, and a difference of 80,000 between the highest and lowest settlement above changes the share by 24.5 percentage points.
The settlement side is where the policy wording arrives. Under market value cover the settlement is calculated after the loss from a depreciation database, using mileage and service history. Under agreed value cover it is the sum fixed at inception, less excess and salvage retention. The lower the settlement figure, the more easily a repair cost exceeds it, which means a market value policy on a car the database undervalues makes a write off more likely, not just cheaper for the insurer.
Retaining the salvage
An owner can often buy back the damaged car, and the retained salvage value is deducted from the settlement. That is a genuine option on a category S or N car and a very limited one on B, which cannot be re registered, or A, which must be destroyed entirely.
Two consequences follow and both are permanent. The category is recorded against the vehicle and shows on any history check, and a recorded category is one of the clearest examples of the unanswered question that buyers discount, alongside missing history where published trade discounts run from 15 to 40 per cent.
What to do while a claim is open
- Ask which category is being applied and on what basis, before the file closes. The letter is the part that follows the car forever.
- Check how the settlement was reached. Under an agreed value policy it should be the agreed sum less excess and salvage. Under market value it comes from a database and can be challenged with evidence.
- Produce the evidence early. Photographs, invoices and a dated valuation are the material that moves a market value settlement, and it is the same file an agreed value policy would have required at inception.
- Decide about salvage on the category, not the sentiment. On A and B the decision is made for you.
Questions readers ask
How does a supercar total loss claim work?
The insurer compares repair cost against the settlement it would pay. If repair is uneconomical the car is written off and given a category: A, B, S or N in the United Kingdom under the ABI system introduced in October 2017.
What do the categories mean?
A is beyond salvage and the whole car including every attached part is crushed. B is beyond repair, parts may be reclaimed but the shell is crushed and it cannot be re registered. S is structural damage that is uneconomical to repair but the car may return to the road after repair. N is non structural and may also return.
What happened to categories C and D?
They were replaced in October 2017. C became S and D became N. Cars written off before that date still carry the older letters, so a history check may return either system.
Can I keep the car after a write off?
On category S or N usually yes, with the salvage value deducted from the settlement. On B it cannot be re registered for road use, and on A the car and all its parts must be destroyed.
Does the policy wording change the outcome?
It changes both the settlement and the likelihood. A market value settlement is calculated after the loss from a depreciation database. A lower settlement figure makes it easier for repair costs to exceed it, so a car the database undervalues is written off more readily.
Does a category affect resale forever?
Yes. It is recorded against the vehicle and appears on history checks permanently. It is the same kind of unanswered question that produces the published 15 to 40 per cent trade discount applied to cars without documented history.
Sources
- Activate Group, UK write off categories explained, for the four current categories, the ABI origin, the October 2017 replacement of C and D and the treatment of each category.
- Hagerty UK, do I need agreed value, for how a market value settlement is calculated from a depreciation database and how an agreed value settlement is paid less excess and salvage retention.