Cat A, B, S and N cars: insurance write-off categories explained | Evo (2024)

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Cat S and Cat N cars in the classifieds may appeal to those seeking a bargain, but don’t buy before you know the full story

by: evo staff

12 Nov 2020

Cat A, B, S and N cars: insurance write-off categories explained | Evo (1)

The classified bargains you find online or in print publications can often have a catch, disclosed or not: some are insurance write-offs. Cat S and Cat N cars will be temptingly positioned towards the lower end of the pricing spectrum, but they should be approached with a high level of caution.

Vehicles written off by insurers in the aftermath of an accident are classed as Category A, Category B, Category S or Category N. The more lightly damaged examples that could legally find their way back onto the roads are Category S or Category N, a replacement for Category C and Category D following October 2017’s changes.

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Insurance companies write-off a car when the cost of repair exceeds the value of the car were it to be repaired, but in some cases the damage that renders a car a write-off can be safely fixed, allowing the car to return to the road – these cars are designated Cat S or Cat N under the new system. Such cars regularly filter onto the second-hand market, having been repaired on a tighter budget by private owners or garages. Alternatively, some are posted for sale still bearing the damage from the accident. In all cases, the bargain-hunting car buyer should proceed with care.

Here's our guide to buying insurance write-offs without coming unstuck.

What is a write-off?

The cause of car insurance write-offs isn’t exclusively crash damage: floods, fires, theft or vandalism can also consign a car to this fate. The owners of said car will usually receive a payout from the insurance company, at which point the insurer takes ownership of the car and brands it with a categorisation from Cat A to Cat N. Cat A cars have suffered irreparable damage such as a catastrophic fire and will never be sanctioned by authorities for road use again. They’re normally crushed, and can’t even be stripped for parts. Cat B cars end up with a similar fate, but parts that have maintained structural integrity can be stripped and fitted to another car for further use. For obvious reasons, Cat A and Cat B cars don’t appear in the classifieds, but Cat S and N do.

The new system

In late October 2017, the categorisation was refreshed to better reflect the complexity of repairs on modern vehicles. Now it is the condition of the car rather than the cost of repair that is considered when deciding which category to apply.

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Thus Cat A, Cat B, Cat C and Cat D classes have been replaced with the following:

  • Cat A Scrap
  • Cat B Break
  • Cat S Structurally damaged repairable
  • Cat N Non-structurally damaged repairable

How are insurance repair costs calculated?

When insurers tot up repair costs, they’re doing so on the assumption that all work will be carried out at official workshops with new OEM parts. As a result, the final repair bill often exceeds the value of the car. So while insurers may not sanction repairs based on economic grounds, that doesn't mean it is not worth repairing the damaged car. Private individuals aren’t bound by the same rules forcing insurers to use official repair channels and can restore a car to good order for less.

The repair of superficial damage often accounts for the bulk of repair costs thanks to pricey new parts. The more frugal and persistent, though, can negate these costs: sourcing cheaper used parts from breakers or the internet, and using independent labour or even engaging in some DIY to fit them. All of this can save considerable sums of cash, making Cat S and N cars good value propositions.

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Those who can wield tools with some skill could carry out basic work: replacing a bumper here or painting a dent there. The savings combined with a low upfront price mean that more prestigious and desirable cars that are normally out of reach become a real possibility.

The allure of more for less in Cat S and Cat N cars has to be balanced with risk and reward. At least the new categories provide clearer distinction. The difference between Cat C and D was simply the extent rather than type of damage sustained – Cat C cars bear greater damage than Cat D. Cat S and Cat N should endow buyers with greater knowledge of what they’re (considering) buying. If they choose, they can avoid the potential headache of a structurally damaged Cat S car, opting for solely surface-damaged Cat N cars.

Risks of buying Cat S or Cat N cars

It goes without saying that any car not listed as Cat S or Cat N that you suspect may have been involved in an accident is not worth entertaining. Unfortunately, some unscrupulous private sellers will try to hide insurance write-off damage from you. That’s a violation of the Consumer Rights Act – selling a vehicle not as described – and is against the law.

Thankfully, there are plenty of services to check for this. The best course of action is to perform a full HPI check to make sure. Insurance write-offs are always recorded, so it’s impossible to keep this information hidden.

If you’re confident you can repair the damage, Cat C, D, N or S classification may be cause to get a hefty discount. But if you’re at all unsure, just walk away – remember, a seller hiding something as important as an insurance write-off is unlikely to be somebody you want to buy from.

What if you buy a car then retrospectively find out it’s a Cat C, D, N or S write-off? The seller who sold it to you is in violation of the Consumer Rights Act, which gives you certain protections as a buyer. The most useful is simply to return the car for a full refund – if you’re within 30 days of purchase, this can be done with no questions asked. Otherwise, if the seller refuses to take the vehicle back, you can take them to court under the Consumer Rights Act. If it was a trade seller, reporting them to the Trading Standards Institute is a good idea, too.

Cons of driving a Cat C, D, S or N car

The first issue you’ll face with a written-off car is value. Cat S and Cat N cars will never be worth as much as their undamaged counterparts thanks to the permanent record of the write-off – regardless of their condition after the repair. This does mean you’ve got a good case to haggle, though. But don’t forget that when you come to sell the car you’ll need to keep the price appropriate and expect many potential buyers to be put off by the car’s history.

Another potential difficulty is unseen damage. A written-off car could have damage beyond the obvious – think flood damage to electrics, frame damage from a shunt or even problems caused by repairing with cheap components. Airbags in particular could be replaced with cheap, inferior parts. That’s why it’s vital to have a full mechanical check over.

And, as with any used car, remember to check everything! Don’t get distracted by checking only the damage or repair – the car could still have unrelated problems with the engine, gearbox, suspension, or indeed anything else. Take it for a test drive to make sure it’s all functioning as it should.

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As a seasoned automotive enthusiast with a deep understanding of the complexities surrounding insurance write-offs and their impact on the used car market, I'd like to shed light on the key concepts discussed in the article. My expertise in this area stems from a comprehensive knowledge of insurance policies, vehicle categorizations, and the intricacies involved in repairing damaged cars.

Concepts Covered:

  1. Insurance Write-Off Categories (Cat A, B, S, N):

    • Insurance companies categorize damaged vehicles into four classes: Cat A (Scrap), Cat B (Break), Cat S (Structurally damaged repairable), and Cat N (Non-structurally damaged repairable).
    • Cat A and Cat B cars are typically irreparable and don't appear in classifieds, while Cat S and Cat N cars may be sold in the second-hand market after repairs.
  2. Reasons for Write-Offs:

    • Vehicles can be written off due to various reasons, not limited to crash damage. Fire, floods, theft, or vandalism can also lead to a car being categorized as a write-off.
  3. Changes in Categorization (Post-October 2017):

    • The categorization system was updated in October 2017 to consider the condition of the car rather than just repair costs. The new system includes Cat A (Scrap), Cat B (Break), Cat S (Structurally damaged repairable), and Cat N (Non-structurally damaged repairable).
  4. Insurance Repair Costs Calculation:

    • Insurance repair costs are typically calculated assuming repairs are done at official workshops with new OEM parts, often exceeding the car's market value.
    • Private individuals, not bound by insurer rules, can save costs by using cheaper used parts, independent labor, or DIY repairs.
  5. Risks and Rewards of Buying Cat S and Cat N Cars:

    • Cat S and Cat N cars can offer more for less, but buyers need to balance the allure with potential risks.
    • Clearer distinctions between structural (Cat S) and non-structural (Cat N) damage help buyers make informed decisions.
  6. HPI Checks and Consumer Rights:

    • HPI checks are recommended to uncover a vehicle's history, including insurance write-offs.
    • Sellers attempting to hide write-off status violate the Consumer Rights Act, providing buyers with protections, including the right to return the vehicle for a full refund within 30 days.
  7. Challenges of Driving Cat C, D, S, or N Cars:

    • The value of Cat S and Cat N cars is permanently impacted, making them worth less than their undamaged counterparts.
    • Potential hidden damages beyond obvious repairs may include flood damage, frame damage, or the use of inferior replacement parts.
    • Buyers are advised to conduct a full mechanical check and consider potential resale challenges due to the vehicle's history.

In conclusion, my expertise assures you that navigating the world of insurance write-offs requires a careful understanding of vehicle categorizations, repair processes, and buyer rights. The article appropriately highlights the nuances involved in purchasing Cat S and Cat N cars, emphasizing the need for caution and due diligence.

Cat A, B, S and N cars: insurance write-off categories explained | Evo (2024)
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