For most of us, a car is the second most expensive thing we will ever buy, and the used market is a brilliant place to find value — a three-year-old motor with most of its life ahead of it, for a fraction of the new price. One careless purchase, though, can empty your savings in a single weekend of warning lights and garage bills.
The difference between the two outcomes is rarely luck. It is checks — boring, unglamorous, twenty-minutes-with-your-phone checks that too many buyers skip because the paint is shiny and the seller seems nice.
Set Your Real Budget First
Before you look at a single listing, work out what the car will actually cost you, because the sticker price is only the start. There is insurance (get real quotes on the exact model, not a guess), road tax, fuel, parking, and a sensible repairs fund, because even a good used car will need tyres, brakes or a battery sooner or later.
The neighbour who bought the fancier car and then could not afford to fix it in February is a cautionary tale in every street. A cheaper car with money left over beats a stretched budget every time.
Check the MOT History — Free and Takes Two Minutes
With just the registration number, the government's online MOT history service shows you every test, failure and advisory the car has ever had, plus the recorded mileage at each one. It takes two minutes and costs nothing.
Look for patterns, not just passes. The same advisory appearing year after year — corrosion creeping in, a tyre always near the limit, a persistent oil leak — tells you how the car has been cared for. Check the mileage climbs steadily, too; a figure that suddenly stalls or goes backwards needs explaining. A car that failed badly and then passed a week later at a different garage is also worth a raised eyebrow.
Read the Service History Properly
A stamped service book or folder of receipts is a good sign — but read it, don't just glance at it. Are the services roughly on schedule, or are there big gaps? Were they done by a main dealer, a decent independent, or is there nothing but a couple of faded stamps from years ago? Receipts for big jobs — a clutch, a timing belt, a water pump — are gold dust: those are exactly the bills you do not want in month two.
If the seller claims a big job was done but has no paperwork, treat it, politely, as not done, and price the car accordingly.
Run a Proper History Check
Before any serious money changes hands, pay for a full history check — the HPI-style checks offered by several well-known providers. For a relatively small fee, they will tell you whether the car has outstanding finance on it, whether it has ever been written off by an insurer, whether it is recorded as stolen, and whether the mileage or number plates have anything odd in their past.
Outstanding finance is the one that really matters. If a car still belongs, in effect, to a finance company, the person selling it may not have the right to sell it — and you could lose both the car and your money. Never skip this check on a private sale, and be wary of any seller who urges you to hurry past it.
Paperwork: The V5C and the Details That Matter
The V5C logbook should be in the seller's name, at the address you are standing in. If it is not, ask why, and be prepared to walk away if the story wobbles. Check that the VIN — the long identity number visible at the base of the windscreen and stamped elsewhere on the car — matches the V5C exactly, digit for digit. A mismatch is a full stop, not a haggling point.
Gather up the rest while you are there: the current MOT certificate, the service records, receipts, the spare key (a replacement modern key can be surprisingly expensive), and the locking wheel nut key, which lives in the boot and whose absence you will discover at the worst possible moment.
The Test Drive Checklist
Always drive the car, and always from cold. A warm engine on arrival can hide starting problems, so ask beforehand that it not be run before you come. On the drive:
- Pull away and check the steering feels straight and the car does not drift to one side
- Brake firmly from a decent speed — it should stop straight, without juddering or pulling
- Work through every gear, listening for crunches, whines or hesitation
- Test everything electrical: windows, lights, air conditioning, heaters, wipers, the lot
- Park up with the steering on full lock both ways and listen for clicks and groans
Afterwards, look underneath for fresh drips where the car was parked, and check the oil and coolant levels and colour. Rusty sludge or a milky residue under the oil cap means you should be walking away, however nice the drive was.
Look at the Tyres — They Tell the Truth
Tyres are an honest witness. Check the tread across the whole width of each tyre, not just the easy-to-see edge. Uneven wear — smooth on one side, healthy on the other — points to tracking or suspension problems that will cost money to sort. Mismatched cheap tyres on a supposedly well-kept car tells its own story about the owner's attitude to maintenance.
While you are crouched down, glance at the brake discs for heavy scoring, and check the boot for a usable spare wheel or repair kit.
Dealer or Private Seller?
There is no wrong answer, but know what you are trading. A dealer will usually charge more, yet you get proper legal protection: the car must be as described and fit for purpose, and if a serious fault appears early on, the responsibility sits with the dealer. Many also include a warranty, which is worth reading rather than just nodding at.
A private sale is cheaper, but the protection is far thinner — essentially, the car must match its description and the seller must have the right to sell it. "Sold as seen" is not quite the free pass some sellers think it is, but in practice your rights are limited, which is precisely why all the checks above matter more, not less, on a private purchase.
Haggle Without Falling Out
Negotiation is expected, so do it with evidence rather than theatre. "The MOT history shows the advisories will cost a fair bit to sort, and it needs four tyres soon — would you take this much?" works far better than a vague complaint about the price. Be polite, be specific, and know your walk-away figure before you start.
Whatever you agree — work to be done, a fresh MOT, a service, a second key — get it written down before money moves. A friendly promise in a driveway has a habit of evaporating by Monday morning.
Buy with your head, verify everything, and a used car is still one of the smartest purchases going. Rush it because the colour is right, and you may be paying for that colour for years.