Is a pre-purchase car inspection worth it? AA, RAC and independent inspections compared

A pre-purchase inspection costs somewhere between about £80 and £300, which is real money to spend on a car you might not buy. It's also the only check that puts someone who knows what they're looking at underneath the car. Whether it's worth it depends on the car, what you've already ruled out, and what the inspection actually covers, because the tiers differ more than the brand names do.

Is a pre-purchase car inspection worth it?

Usually yes, on any car where a hidden fault would cost more than the inspection, and especially when you can't judge a car's mechanical condition yourself. Citizens Advice suggests getting an independent report as the step beyond your own checks, and puts the cost at around £120 to £250. It's worth least on a cheap car where the fee is a big slice of the price, and most on an expensive, complex or high-mileage one where a single fault could cost thousands.

It's worth it only after the free checks, though. An inspection looks at the car's condition on the day. It doesn't look at whether the car has finance owing, was written off, or has an MOT history that contradicts the advert, and those are the findings that make you walk away before you've paid anyone to crawl underneath.

How much does an AA or RAC car inspection cost?

The AA's runs from £110 to £279 and the RAC's from £132 to £290, depending on the tier and, for most tiers, the car. These are the prices on their own pages on 9 October 2026:

Sources: the AA, the RAC, ClickMechanic and CarExamer, checked 9 October 2026. Prices change, so read the provider's own page before booking.

What does an AA vehicle inspection check?

It depends on the tier, and the difference matters. The AA's Basic inspection covers up to 99 points with a basic road test. The Comprehensive goes to up to 214 points with a photo report, bodywork checks for accident damage and a road test of up to 10 miles. The Advanced adds a video report, brake fluid analysis, a digital battery test and a diagnostic system overview, which is the plug-in check of the car's electronic fault memory.

The AA's page also lists what's excluded, and cylinder compression is on that list. On an electric or hybrid car you need the Comprehensive or Advanced tier, which include a hybrid or electric battery test; used EV battery health explained covers what that can and can't tell you.

What does an RAC vehicle inspection include?

The RAC's Basic covers a mechanical and structural inspection with a road test of up to 3 miles and a fault report by email. Its Comprehensive is a 307-point inspection with a road test of up to 10 miles and a verbal summary from the engineer. The Advanced adds a diagnostic check, a brake fluid test, a road test of up to 20 miles and photos in the report.

Watch the Basic tier's exclusions: the RAC won't do it on cars over 10 years old, over 120,000 miles, hybrids, 4x4s or prestige cars, among others, so many used cars go straight to the Comprehensive.

Are independent car inspections as good as the AA or RAC?

They can be, and they're often cheaper and quicker to book. Compare tiers by what they do rather than by brand: the number of points, whether there's a road test and how long, whether a plug-in diagnostic check is included, whether the car gets raised so someone sees underneath, and whether you get photos. ClickMechanic's Premium, for example, includes a plug-in diagnostic check and raises the car; the AA only puts diagnostics in its top tier.

None of the providers we checked offers a guarantee. The AA says its report "is not a guarantee of future condition", and ClickMechanic and CarExamer say plainly their inspections don't come with a warranty. You're paying for an expert's eyes on the day, not insurance.

What does an inspection need from the seller?

Their permission, and usually somewhere suitable. The AA and the RAC both need the seller's permission to book, and the AA needs the car on private land on a hard, level surface. The AA quotes 2 to 4 working days to arrange one, the RAC usually within 48 hours, and some independents offer same or next day.

That makes the seller's reaction a useful test in itself. An honest seller with a decent car has nothing to lose from an inspection. One who suddenly has another buyer coming tomorrow, or can't find a day that works, is telling you something. The car being seen where the seller lives, rather than in a car park, matters for the same reason.

What won't a car inspection tell you?

Anything that isn't visible on the day. An inspection doesn't check for outstanding finance, a theft marker or an insurance write-off, because those are records, not condition. It can't see inside the engine without taking it apart, so it won't confirm a timing belt was changed, and the AA's tiers exclude a compression test. And it can't see the car's past: an advisory that's been on three successive MOTs, or a mileage reading that dropped four years ago, are in the records rather than on the car. MOT advisories explained shows how to read those before you book anyone.

That's why the order matters. Records first, inspection second.

Should you get an inspection or do it yourself?

Do your own walk-round first, every time, and book an inspection when the car passes it and you're serious. What to look for when buying a used car has the full checklist for your own viewing. An inspection earns its fee on the things you can't judge: structural repairs, suspension and steering wear, the diagnostic fault memory, how the gearbox behaves on a proper road test, and anything model-specific. Our model pages, like the Ford Focus and Nissan Qashqai, list the documented faults for each generation, which tells you and the inspector what to look at hardest.

If the car's had accident damage repaired, an inspection is the only way to judge the repair. Has this car been in an accident? covers what records can and can't show before you get that far.

Which of these jobs can a check do before the inspection?

Say it plainly first: a report doesn't replace a mechanic with the car on a ramp. Ours reads records and the advert. It can't hear a knock, feel a clutch, or see a weld. If you're about to spend serious money, do both.

What a check does is make sure the inspection fee is spent on a car worth inspecting. The MOT history is the same official DVSA record for every check on the market, free on GOV.UK. Our free scan reads it in sequence, so repeat advisories, mileage that doesn't fit and long gaps in testing are flagged rather than left for you to find. It reads the advert against that record, which no inspector and no plate lookup does, so "new MOT, nothing needed" next to three years of a corrosion advisory gets caught before you've booked anyone. And it checks the car against the known faults for that model, from 871 documented faults across 41 makes, and gives you a verdict and a risk score.

That's also the inspector's brief. The report link can be shared, so the person inspecting the car can see the MOT history and the known faults for that engine before they arrive. If you upgrade to the Smart Check, you get every finding explained with repair costs, the questions to put to the seller, a physical inspection checklist for that car, and a figure to negotiate from when the inspection finds something.

The records side the free scan doesn't cover, finance, theft and write-offs, is the Provenance Check, and it includes the Smart Check. Neither covers what's only visible on the car on the day. That's the inspection's job, and it's a good one.

So what should you actually do?

Before you book an inspection, run the car through the free scan. If it tells you to walk away, you've saved the inspection fee. If it doesn't, book the inspection and send the inspector the report link. And if you want the checklist and the costs for that car, the same report upgrades on the same link with nothing re-run, so starting free wastes nothing either way.