The MoT Files: Bottom 50 MoT performers

Our MoT data reveals a lot of information about the specifics of common MoT failure causes, whether simple bulb failures or more complex and dangerous problems, like worn out brakes or excessive rust. But what are the UK’s worst overall cars for the Mot? 

We list the 50 models that have the lowest overall pass rates in the country. We’ve put a filter on so only models of which more than 5000 were tested appear, to filter out rare cars or particularly old models. 

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Fiat Stilo – 42% pass rate

The Stilo was never a well-received car, but there are still plenty knocking around on the roads of the UK. Sales stopped in 2007, so there are lots of tatty, old examples on the road which are worn out and more prone to technical problems than newer cars.

The usual suspects are lighting and signalling, which is typically the main cause of MoT failures across all makes and models, followed by items like suspension and brakes. That said, the failure rate across most components is higher than average compared to other contemporary vehicles. 


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