A new study has revealed that four in 10 vehicles across Britain are operating with tyres that fail to meet safety standards or are perilously close to being illegal.

The TyreCheck 2025 report, which examined over 58,000 vehicles at 141 sites nationwide, discovered that eight per cent of cars are fitted with tyres that fall below the statutory 1.6mm tread depth requirement.

The National Tyre Distributors Association's comprehensive analysis also identified that an additional 32 per cent of vehicles are equipped with dangerous tyres.

While they are technically within legal parameters, they provide significantly compromised traction and safety performance, particularly during wet weather conditions.

The findings indicate that British motorists are postponing tyre replacements until the final moment, creating substantial hazards for all road users.

The most alarming regional findings emerged from Halesowen in the West Midlands, where over 70 per cent of examined vehicles were discovered to have illegal tyre equipment.

This represented the highest non-compliance rate ever documented in British tyre safety assessments.

Northern Ireland demonstrated particularly concerning statistics, with more than one-fifth of vehicles across the region running on illegal tyres.

Experts are calling on drivers to ensure their vehicles are safe before heading off

A more detailed investigation uncovered a staggering 57 per cent non-compliance rate in specific areas.

Ian Andrew, chief executive of the NTDA, issued a stark warning about the findings: "This report should serve as a wake-up call for every motorist in the UK.

"The fact that nearly two in five vehicles are running on tyres that are either illegal or dangerously close to it is shocking.

"The tragedy is that this isn't just a technical issue - it's about lives at risk every single day on our roads."

Drivers could be slapped with a £10,000 fine if their tyres are not up to standard | PA

Research conducted by TyreSafe and the RAC exposed widespread ignorance about tyre regulations, with 61 per cent of motorists unaware that 1.6mm represents the legal minimum tread depth.

Only one-third of drivers inspect their tyre treads monthly, while half of those who neglect regular checks admitted the task simply "doesn't cross their mind".

Motorists face penalties of up to £2,500 per illegal tyre and three penalty points. Braking distances in wet conditions also double when tread depth drops below 2mm.

If drivers are caught driving dangerously as a result of their illegal tyres, they could be slapped with a massive £10,000 fine.

All four tyres to have at least 1.6milimetres of tread depth | PA

Mr Andrew stressed that meeting minimum legal requirements doesn't guarantee safety: "Legal doesn't always mean safe and drivers are leaving tyre replacement far too late.

"We urgently need to move beyond minimum standards and make tyre safety a national priority."

The NTDA has proposed several immediate measures to improve road safety and awareness of the risks of having illegal tyres.

This includes increasing the statutory minimum tread depth to 2.0mm, implementing focused initiatives in areas with high non-compliance rates, and providing enhanced financial assistance for drivers facing tyre replacement expenses.