Motorists who had their car checked in Kirkcaldy were the most likely to fail their exam with 28 percent of vehicles found to not meet minimum safety standards. Dundee was the second-highest offender with a 27 percent failure rate while Devon and Cornwall were other major hotspots.
Truro in West Cornwall were found to be the third-highest offenders with 26 percent of vehicles failing their tests.
Plymouth, Exeter and Torquay were the next highest with one in four talking to pass their yearly car assessment.
It was a different picture for residents in London with nine postcodes across the capital achieving pass rates of over 76 percent.
Enfield had the highest pass rate in the UK with 78 percent of vehicles found to suffer no car issues.
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Slough in Berkshire and Chelmsford in Essex had the second and third highest pass rates while Bromely, Kingston and Ilford were behind with pass rates of 77 percent.
Colin Cottrell, central operations director at Euro Car parts said the data could urge drivers to check their vehicles before booking in a test.
He said: “With so many vehicles due for their MOT because of the government’s extension, it’s very interesting to see the postcodes where cars are most likely to pass and fail.
“For cars within the postcodes seeing the highest fail rates, perhaps the data will urge drivers to double and triple-check their cars, and ensure they are 100 percent road-worthy before sending them for their MOT.”
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Analysis from Euro Car parts revealed that problems with vehicle lamps, reflectors and electrical equipment were the most common reason for failures.
Over a quarter of road users suffered from these issues with 27 percent of failures accountable.
Broken suspensions were the second most common reasons why drivers failed their test with 20 percent of drivers suffering from this issue.
But these failures could be costly for road users with average repairs valued at over £240 in a major blow for many.
Drivers who fail to get an MOT pass certificate will be unable to use their vehicles legally.
DVSA head of MOT policy, Chris Price has previously said: “MOT exemptions were issued to allow people to continue to use their vehicles for essential travel during the pandemic.
“The MOT is an important test to make sure a vehicle remains safe to drive.
“We know that MOT centres are likely to be very busy this autumn with double the usual demand.”