As many as one in five cars failed their first MOT, according to an analysis of new records published by consumer driving website HonestJohn.co.uk last week.
A total of 24.5 million MOT records were studied by the team behind the site after obtaining access to the documents, which came from the Vehicle Operator and Services Agency (VOSA), using the government's OpenData scheme.
According to the data collected, a total of 352,000 cars failed their first MOT test between October 2010 and September 2011.
The most common reason for failing the test was lighting and signalling with a total of 164,837 failures generated from this.
Faulty tyres were responsible for 96,760 MOT failures during this time with 82,555 failures attributed to headlight aim.
A further 80,605 failures were blamed on issues relating to the driver's view of the road.
Honestjohn.co.uk has now published the file, which it hopes will allow consumers to spot common failures among cars.
"Families using the data that comes from the 24.5 million records will be better prepared for their MOTs and be able to keep better control over the cost of motoring," editor Daniel Harrison said.
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