More than 10 million vehicles have failed the new MOT tests since their introduction a year ago, according to a study by Green Flag.
Warnings on write-offs, outstanding finance and theft on used car checks are continuing to rise.
The number of warnings flagged against used vehicles checked by Mycarcheck.com has risen year-on-year.
Automotive Management Live: Where franchised and independent dealers will find everything they need to know about operating a modern showroom and service and repair facility fit for the digital age.
When: November 7 2019
Where: Birmingham NEC
Find out what features are in this month's, and future, issues