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1 Million Vehicle Mileage Test

We Checked The Mileage of 1 Million Vehicles

Vehicle clocking and mileage issues are a potential problem for used car buyers, the scale of the problem is what we want to go into in this blog post, we are writing this blog post after checking the mileage of 1 million vehicles.

We performed this test using the same methods as our free mileage history checking tool that is publicly available for anyone to use, basically if the mileage has been lowered between MOT tests or has a mixture of odometer readings (miles and kilometres), we class it as a fail.

The main problem with clocking is, it’s very difficult (if not impossible in most cases) to tell if a vehicle has been clocked just by looking at it and the bigger issue is, you’re paying over the odds for a vehicle that could be worth thousands less (if the seller isn’t honest that is).

The Overall Findings

We started this test on the 14th July 2019 and reached 1,000,000 checked vehicles on the 2nd August 2019 (that’s 19 days of testing!). On the 2nd August 2019 we started compiling this data to produce the figures you see here.

Total vehicles checked: 1,000,000 (1 million)

Total vehicles that failed the mileage test: 64,986 out of 1,000,000

Total fail rate in percent: 6.49%

Mileage Failures Broken Down

Failed on lowered mileage: 60,501 out of 1,000,00

Percentage of above: 6.05%

Failed from mixture of odometer readings (miles and kilometres): 7509 out of 1,000,000

Percentage of above: 0.75%

Failed on both mixed readings and lowered mileage: 3024 out of 1,000,000

Percentage of above: 0.30%

Fail Rates By Make & Model

Shown below are the fail rates by make and model, we have removed any vehicles that have less than 100 fails in total or 1000 checks in total as this isn’t enough data.

Make & ModelTotal FailedTotal CheckedFail Rate
RENAULT GRAND SCENIC500153132.66%
RENAULT SCENIC870270732.14%
PEUGEOT EXPERT331107030.93%
CITROEN DISPATCH311109828.32%
MITSUBISHI COLT225130617.23%
NISSAN ALMERA212155313.65%
MERCEDES C 220172130213.21%
BMW 525177138412.79%
VOLKSWAGEN FOX158125812.56%
CITROEN C2156124512.53%
VAUXHALL COMBO371306112.12%
FIAT DUCATO155129611.96%
VOLKSWAGEN SHARAN174146011.92%
BMW X5315265711.86%
FORD TRANSIT22871947911.74%
BMW 530193166411.60%
VOLKSWAGEN BORA119102911.56%
SUBARU IMPREZA146127711.43%
JAGUAR X TYPE259229511.29%
RENAULT LAGUNA185168011.01%
MERCEDES-BENZ VITO168159210.55%
LAND ROVER DEFENDER148144810.22%
FORD TRANSIT CONNECT448443210.11%
VAUXHALL VECTRA743742910.00%
PEUGEOT 20656857199.93%
MERCEDES-BENZ SPRINTER39039319.92%
CITROEN XSARA34434979.84%
RENAULT MASTER11211649.62%
PEUGEOT 30733235029.48%
FIAT PUNTO54359109.19%
BMW 31611312359.15%
LAND ROVER RANGE ROVER21924788.84%
PORSCHE 91110612218.68%
FORD GALAXY24628368.67%
TOYOTA PRIUS19022068.61%
CITROEN RELAY11813768.58%
BMW 32516519638.41%
TOYOTA COROLLA21125168.39%
RENAULT CLIO983118178.32%
RENAULT MEGANE55467718.18%
NISSAN MICRA51262768.16%
RENAULT KANGOO12715937.97%
HONDA ACCORD15319237.96%
VOLKSWAGEN PASSAT1023128667.95%
TOYOTA AVENSIS26533837.83%
VOLVO V7014218477.69%
FORD KA67688057.68%
SAAB 9-324432487.51%
SUZUKI ALTO10314187.26%
BMW 31839053787.25%
TOYOTA YARIS61785817.19%
PEUGEOT 20746664867.18%
LAND ROVER DISCOVERY23132467.12%
CITROEN C439555997.05%
VAUXHALL ZAFIRA832120176.92%
VOLKSWAGEN BEETLE13719806.92%
AUDI A647468566.91%
BMW 33018126596.81%
VOLVO S4011917606.76%
NISSAN NAVARA10515856.62%
FORD MONDEO809123356.56%
MINI MINI1031158486.51%
CITROEN C334954666.38%
RENAULT TRAFIC13621336.38%
VAUXHALL ASTRA1887297676.34%
HONDA CIVIC59894386.34%
VAUXHALL MERIVA27042836.30%
VAUXHALL VIVARO31550316.26%
AUDI A4983158716.19%
VOLKSWAGEN TOURAN20132586.17%
PEUGEOT 10716627486.04%
NISSAN NOTE19933365.97%
FORD FUSION13723085.94%
FORD FOCUS2025346425.85%
SKODA OCTAVIA33356975.85%
BMW 320707121065.84%
VOLKSWAGEN GOLF2090358505.83%
VAUXHALL CORSA1743311315.60%
PEUGEOT PARTNER14225595.55%
VOLKSWAGEN TRANSPORTER29554775.39%
SUZUKI SWIFT14327585.18%
FIAT PANDA13025175.16%
BMW 52025148945.13%
LAND ROVER FREELANDER21442075.09%
AUDI TT20740715.08%
CITROEN BERLINGO23947435.04%
SKODA FABIA30159795.03%
MERCEDES-BENZ E28056015.00%
VOLKSWAGEN POLO992199184.98%
BMW 12012424944.97%
MERCEDES-BENZ A26453564.93%
AUDI A3894190394.70%
MAZDA 616435174.66%
BMW X310723394.57%
LAND ROVER RANGE ROVER SPORT11024934.41%
CITROEN C118642444.38%
MERCEDES-BENZ C37987414.34%
VOLKSWAGEN CADDY13331334.25%
PEUGEOT 30813431904.20%
SEAT LEON33680614.17%
VAUXHALL INSIGNIA33380554.13%
SEAT IBIZA38994594.11%
HONDA CR-V18446493.96%
FORD FIESTA1547402963.84%
HONDA JAZZ25267053.76%
MAZDA 312134153.54%
BMW 11816148103.35%
TOYOTA AYGO11037012.97%
FIAT 50013753672.55%
AUDI A511043152.55%
NISSAN QASHQAI18375122.44%
BMW 11612351642.38%

Explanation of the data above:

  • Make & Model – The make and model of the vehicle.
  • Total Failed – How many failed out of the Total Checked for this make + model.
  • Total Checked – The total checked from the 1,000,000 list.
  • Fail Rate – The fail percentage for the make + model (worked out using Total Failed and Total Checked data)

Fail Rates By Year of Vehicle Registration

Shown below are the fail rates by year of vehicle registration, we have removed any vehicles that have less than 100 fails in total or 1000 checks in total as this isn’t enough data.

YearTotal FailsTotal ChecksFail Rate
1998556337516.47%
1997476289516.44%
1995317194516.30%
1996353219316.10%
1999683437815.60%
2000926601115.41%
200125931709315.17%
200252743534714.92%
1994192131014.66%
200360974236714.39%
200470765328313.28%
200579846684911.94%
20066931715739.68%
20076468792058.17%
20084647682726.81%
20093353607765.52%
20103117677074.60%
20112315631773.66%
20121695628132.70%
20131322666961.98%
2014948769661.23%
2015513870280.59%
2016105525860.20%

Explanation of data above:

  • Year – The year of vehicle registration
  • Total Fails – How many vehicles failed mileage check.
  • Total Checks – Total vehicles checked by year of vehicle registration.
  • Fail Rate – Worked out by using Total fails and Total Checks data.

Average Yearly Mileage of Passed VS Failed Vehicles

We thought it may be useful to see if there’s any difference between the average yearly mileage of a vehicle that’s failed the mileage check VS a vehicle that passed the mileage check, this is what we found.

Average Yearly Mileage of Passed Vehicle (935,014 Passed):

9662

Average Yearly Mileage of Failed Vehicle (64,986 Failed):

9251

Average Amount Of Miles Lowered On Clocked Vehicle

We took the 60,501 vehicles that failed on lowered mileage and created a quick mini test to see what the average amount of mileage removed was. Here’s the average figure we got:

70,098

Estimated Number Of Vehicles With Mileage Issues In The UK

To get an estimated figure we must first know how many vehicles are in the UK. According to racfoundation.org there are 38.2 million vehicles in the UK.

Our overall fail percentage for this test was: 6.49%

6.49% of 38,200,000 =

2,479,180

This makes the total estimated vehicles with mileage issues in the UK just over 2.4 million.

More information about this data

How we performed this test

We created a custom piece of software that uses the same rules as our free mileage history checking tool, the software then saved a big log file for us to analyse.

The length of time it took to collect this data

It took 19 days in total to check and collect the mileage data of 1 million vehicles. We started this test on the 14th July 2019 and it ended on the 2nd August 2019.

Where we got the mileage data from

We got the vehicle mileage data from the gov.uk MOT API.

The point of this test

To get a bigger and better understanding of how many vehicles in the UK have mileage issues. And we know that the more data collected the more accurate the results. According to the racfoundation.org there’s 38.2 million vehicles in the UK, that means we almost tested 1 out of every 38 vehicles in the UK on this test.

Sneak peak at the 1 million spreadsheet?

Apologies for the length of this video, it’s 37 minutes long in total and we had to speed it up at that!

This video scrolls all the way through the 1 million rows of vehicle data we collected.

Need more info?

If you have an interest in this data or the test we carried out, we would love to chat! You can contact us at: enquiries@rapidcarcheck.co.uk

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