modified car insurance
Compare insurance for modified cars, from subtle upgrades to full performance builds.
Compare UK providers for cars with declared modifications and non-standard specifications.
compare 130+ providers
cover for declared modifications
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What is modified car insurance?
Modified car insurance offers cover for vehicles changed from factory specification by current or previous owners.
Some providers are more cautious about modified vehicles than others, so comparison helps you see which policies may fit your car and budget.
What counts as a modification?
Performance changes
Engine swaps, remaps, turbo upgrades, and other power-focused changes.
Aesthetic upgrades
Body kits, paint wraps, alloys, tints, and visible appearance customisation.
Chassis/interior/safety
Suspension changes, brake upgrades, roll cages, bucket seats, audio systems, and security updates.
How much is modified car insurance?
Modified cover is often pricier than standard policies, but total cost depends on you, the car, and declared usage.
Personalised quote comparisons are the quickest way to see your real price point.
Why modified policies often cost more
- Higher replacement value from custom parts.
- Greater repair complexity and specialist labour.
- Potentially higher performance-related claim exposure.
- In some builds, increased theft appeal.
Factors that influence modified premium
- Type and extent of modification.
- Total vehicle value after upgrades.
- Driver record, age, and claims history.
- Annual mileage and driving purpose (social, commuting, or business use).
- Policy structure, excess, and provider appetite.
How to find cheaper modified cover
- Select add-ons carefully and avoid unnecessary extras.
- Pay annually where possible to reduce finance loading.
- Raise voluntary excess only to an affordable level.
- Compare multiple providers side by side.
- Maintain clean driving history and secure parking habits.
How modifications can affect cost
Cover types for modified cars
| Cover type | What it covers | Typical use case |
|---|---|---|
| Comprehensive | Wider cover including your own modified car | Common choice for higher-value builds |
| Third-party only | Damage/injury caused to others | Legal minimum road use |
| Third-party, fire and theft | Third-party plus theft/fire for your car | Mid-level protection |
| Temporary modified cover | Short-term cover may be offered by some insurers | Occasional or seasonal use |
Popular add-ons for modified drivers
- Breakdown cover.
- Legal expenses cover.
- Personal accident cover.
- No-claims discount protection.
- Some insurers may also offer track-day cover.
How to find the best policy fit
- Declare every modification with as much detail as possible.
- Compare inclusions/exclusions, not just top-line price.
- Check whether the provider is happy to cover your declared modifications.
Modified car insurance FAQs
Can all insurers cover modified cars?
No. Some insurers do not cover modified vehicles, so comparison can help you find providers willing to quote.
Do I need to declare modifications after my policy starts?
Yes. You should report new changes promptly. Failing to do so can invalidate claims and potentially your policy.
What if I hide modifications from my insurer?
Your policy may be cancelled or claims refused, and you may be treated as driving without valid insurance.
How is a modified car valued for insurance?
Insurers may request receipts, photos, and specification details to establish realistic value after modifications.
Can young drivers insure modified cars?
Yes, but premiums are usually higher due to combined age and vehicle risk factors.
Modified car insurance prices vary by declared modifications, vehicle value, usage profile, location, and driver history. Personalised quotes are required for an accurate premium.