If you’ve ever bought a vehicle from a UK salvage auction or seen a “Cat S” or “Cat N” mention in a used-car listing, you might have wondered exactly what those categories mean — and what they imply for getting the vehicle moved to your home, dealership, or workshop.
This guide walks through the difference between Category S and Category N vehicles, what each means for the vehicle, what to expect when you go to transport them, and how an online marketplace such as A1 Transporter lets you compare quotes from several independent drivers.
The Association of British Insurers (ABI) updated UK vehicle salvage categories in October 2017 to replace the old A/B/C/D system. The four current categories are:
Only Categories S and N can be repaired and legally returned to UK roads after appropriate repair work. They are the categories most commonly bought at UK salvage auctions for repair, resale, or parts.
A Category S vehicle is one that, in the insurer’s opinion, has sustained damage to a structural element — typically chassis rail, A/B/C pillar, suspension turret mountings, or critical reinforcement points.
The key thing to understand about Cat S is that the structural damage can be repaired to manufacturer specification. A competent body shop with the right jigs and equipment can return a Cat S vehicle to fully roadworthy condition. The “S” category is recorded against the vehicle and stays with it.
Common Cat S causes:
Before a repaired Cat S vehicle goes back on the road, check GOV.UK for what you need to tell the DVLA and what paperwork you need — the rules for written-off vehicles are set out there. The vehicle also has to be roadworthy, taxed, insured and have a valid MOT where one is needed.
A Category N vehicle has sustained damage to non-structural elements — typically panels, electrical systems, cosmetic items, glass, lights, or interior trim.
Cat N covers a huge range of damage severity, from very light cosmetic damage (a dented bonnet) all the way through to substantial cosmetic and mechanical damage (flood-damaged interior, complete bumper assembly, hail damage across all panels).
Common Cat N causes:
As with Cat S, check GOV.UK for any DVLA requirements before the repaired vehicle goes back on the road. The “N” category stays on the vehicle’s record.
A vehicle’s salvage category usually affects its resale value:
This discount is exactly why Cat S and Cat N vehicles are popular with experienced UK buyers who can afford the repair work — the post-repair “discount” represents profit margin if you can do the repairs cost-effectively.
Here’s where many first-time salvage buyers run into trouble. Cat S/N vehicles are frequently:
This combination — non-runner, no key, no insurance, no MOT — means the vehicle cannot legally be driven under its own power on UK public roads. It must be transported on a trailer, low-loader, or specialist recovery vehicle.
1. Self-collection with hire trailer
If you have a vehicle capable of towing (and your driving licence covers the towing weight), you can hire a recovery trailer from a trailer hire company. Prices vary — get a quote before you plan around it.
Caveats: You’ll need to physically push or winch the non-runner onto the trailer, which is hard work for one person. You’ll also need to check your licence covers the trailer + towed vehicle combined weight — the towing rules changed in 2021, so check the current rules on GOV.UK before booking.
2. Traditional transport companies
Transport and recovery companies will price your job and send a driver. The price varies with distance, vehicle weight and condition, and how busy they are.
Caveats: You get one company’s price, so compare it with other quotes. Ask how soon they can collect and exactly what’s included.
3. UK marketplace platforms (like A1 Transporter)
Marketplace platforms work differently — instead of one company’s price, multiple independent transport drivers see your job and send their own quotes. You pick the best price + timing combination.
What you get with A1 Transporter:
A1 Transporter operates across England, Scotland and Wales. How many drivers quote for a remote auction venue or rural drop-off depends on who is available on that route.
Whether you’re booking through a marketplace or a traditional transport company, give the transport provider these specifics:
The more detail you provide, the more accurate the driver quote — and the lower the chance of surprises when they arrive. On A1 Transporter, put these details in your job description.
These are mistakes salvage buyers commonly make when arranging transport:
1. Underestimating storage fees at the auction venue. Most UK auctions charge daily storage once the free collection period ends — check the exact fees and deadlines in your auction terms. A few days’ delay can easily wipe out any saving from waiting for a cheaper quote.
2. Forgetting to confirm the key situation. A “no key” non-runner needs a driver with skates, dollies or a winch. A driver without the right equipment may not be able to load a vehicle with locked steering.
3. Booking transport before paying for the vehicle. Auction venues won’t release vehicles to transport drivers until the buyer’s payment has cleared. This is a common cause of transport delays.
4. Assuming the vehicle will fit on a standard transporter. Some 4x4s, vans, and SUVs are too tall, too long, or too heavy for a standard light commercial transporter. Always tell the transport provider the exact vehicle.
5. Skipping the photo handover. Document the vehicle condition at pickup AND drop-off with timestamped photos. If you need to claim damage occurred in transit, photos at both ends are essential. On A1 Transporter the driver takes at least 5 photos at each end in the app — but it’s worth taking your own too.
One reason a marketplace can suit salvage transport is that independent drivers can specialise.
Some drivers regularly move salvage vehicles and have the equipment and experience for non-runners. On a marketplace, those drivers can quote for your job directly.
Instead of one company’s price, you compare several quotes side by side — price, goods-in-transit cover and the driver’s note — and choose the driver who suits your job.
There’s no fixed price list for Cat S/N transport. These are the main things that drive a driver’s quote:
| Factor | Why it matters |
|---|---|
| Distance | Usually the biggest single factor |
| Runner or non-runner | Non-runners need a winch, skates or dollies, and more loading time |
| Keys | No keys can mean locked steering and extra equipment |
| Size and weight | Large 4x4s and vans may need a bigger transporter |
| Access | Tight streets, gates or busy yards can add time |
| England → Scotland / Northern Ireland | Long distances mean more driver hours; Northern Ireland adds a ferry crossing |
Each driver on A1 Transporter sets their own price, so the way to find the cost for your vehicle is to post the job and compare quotes. The Cat S/N category on its own matters less than the vehicle’s mechanical state, size and weight.
Both Category S and Category N are legitimate, repairable categories that many UK buyers turn into rebuild projects. The key to a successful Cat S/N purchase is treating the transport leg as carefully as you’d treat the vehicle inspection at the auction. Get accurate driver quotes, document everything, and pick a transport provider with proper insurance and a photo record at both ends.
If you’re moving a Cat S or Cat N vehicle in the UK, you can post the job on A1 Transporter for free — no account needed. Drivers send their own quotes, each showing their goods-in-transit cover, and the driver records at least 5 photos at pickup and 5 at delivery. App available free on the App Store and Google Play.
A1 Transporter is a UK marketplace platform connecting independent vehicle transport drivers with customers across England, Scotland and Wales. Companies House registration 17158649. Before a driver is approved, we check their V5 (vehicle log book), motor insurance and goods-in-transit certificate. Trustpilot: https://www.trustpilot.com/review/a1-transporter.co.uk
Get quotes for your Cat S or Cat N transport: https://a1-transporter.co.uk