We show you how to spot one.

What is a ‘clone?’

A clone is a vehicle which has been stolen and given a false identity, to appear legitimate.

This is usually done by giving the vehicle a false set of number plates, an illegal copy of the V5C document (or ‘log book’) and a different VIN number.

Criminals may attempt to sell a clone privately. If you buy a cloned car you won’t legally own it and you may lose your money.

How can I tell if a car is a clone?

There are a quick series of checks you can perform before buying.

A vehicle check won’t be able to identify a cloned car, but it will tell you if a vehicle has been stolen, written off, scrapped or has outstanding finance.

There are three main ways to spot a clone – check the log book, inspect the car and identify the VIN (vehicle identity number).

If the seller won’t let you do any of these, walk away.

What’s a VIN number and where can I find it?

A VIN is a car’s unique identity number. You can usually find it under the bonnet, at the base of the windscreen, on an inner door panel, in the boot or on the floor beside the front driver or passenger seat.

The VIN’s location depends on the make and model of the car. If you can’t find it, check the vehicle handbook.

Make sure the VIN number:

• Is 17 characters long – a mixture of letters and numbers
• Has no stickers or other obstructions placed over it
• Hasn’t been tampered with or replaced
• Matches the VIN number in the log book

What other checks should I make?

Ask to see the log book and make sure it:

• Is genuine – an original will have a DVLA watermark running through it
• Doesn’t have a tear-off slip which is mauve on the front and pink on the back – legitimate documents are mauve on both sides
• Has information which matches the car and the seller’s personal details such as name and address – ask for their ID if necessary
• Has a barcode
• Has a DVLA watermark by holding the document up to the light
• Has a visible serial number which doesn’t fall within the following ranges:

BG9167501 to BG9190500
BG9190501 to BG9214000
BG8407501 to BG8431000
BG9282001 to BG9305000

To check the validity of a log book call the DVLA on 0870 241 1878.

Finally check the car itself.

• Ensure there hasn't been a recent respray – look for overspray on glass and trim
• Make sure the number plates are genuine
• Check the mileage on the dashboard matches up with the service history documents (be wary if there is no service history)

What is a ‘ringer?’

A ringer is a stolen car which has only had its number plates replaced by a set from a different car.

If the registration number on the log book is different, walk away. You should be equally careful if it looks like the registration number has been tampered with.

How can I prevent my car from being cloned?

1. Keep your log book in a safe place at home – a locked desk or safe is a good idea
2. Avoid handing out your log book by email
3. If you’re selling your car, don't let the log book out of your sight

For more information visit Auto Trader’s safety and security centre.

Video: used car expert Jason Dawe shows you how to check a car before buying: