Three common car modifications that could see you fined up to £2,500 – here’s how to avoid being caught out

THOUSANDS of Brits enjoy revamping their vehicles and adding the latest mod cons to their cars.

But the rules around giving your motor a makeover are complex – and some modifications could result in a huge fine.

Car modifications allow motorists to alter the appearance and performance of their vehicles.

However, they must abide by strict rules and safety standards that ensure the adjustments don't put road users at risk.

Brits can upgrade their cars with exterior accessories, light lens tints, custom hood ornaments and other cosmetic improvements.

Drivers can also better the performance of their vehicles by modifying their brakes, engine, exhausts, suspension, steering and filtration.

But there are some big no no's when it comes to some modifications, which could land you a fine.

Now MoneySuperMarket has analysed the total number of car modification insurance enquiries in 2021, before revealing which modifications are most likely to invalidate car finance PCP and HP agreements.

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Window tints

Risk: £50-100 fine, 3 penalty points or court

Seven per cent of all car modification enquiries were about window tinting.

However, tinting your windows more than allowed can result in a £50 to £100 fine, three penalty points or even being reported to court.

The front windscreen needs to be 75 per cent tint-free, and the side windows 70 per cent tint-free.

Loud exhausts 

Risk: Fine or court

Likewise, over eight per cent of car insurance enquiries for exhaust system changes.

But exhaust systems cannot go over the noise limit of 74 decibels.

Again, this can result in a fine or reported to court, as well as making the vehicle more damaging to the environment. 


Risk: Police intervention

Spoilers aren’t necessarily illegal.

They are popular, with four per cent of car modification enquiries about adding a spoiler.

But, if not installed correctly, it can get you into trouble.

The spoiler needs to be fastened safely.

If not, the police could have the power to remove the unsafe spoiler.

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