Car insurance for modified cars

Average customer rating: 4.3/5
Written by Tiana Lee-Collins
Reviewed by Adrian Taylor
Updated 29 August 2024

Expert tips for choosing car insurance for a modified car

Our car insurance expert, Adrian Taylor, has some top tips on searching for car insurance for modified cars.

Adrian Taylor
Executive General Manager – General Insurance

Declare all modifications

It’s important to declare any modifications to your vehicle before purchasing your car insurance policy. By not declaring changes made to the vehicle, you may not be covered for a claim if the modifications are damaged in an accident.

Keep your policy up to date

If you make any modifications to your vehicle during your period of insurance, you need to contact your insurer as soon as possible and update them on the changes or you risk not being covered if you need to claim. However, this may affect your car insurance premium.

Agreed versus market value

If you have a modified car, it may be more beneficial to find an agreed value policy. A modified car may be worth more than the market value of the standard car, which is why an agreed value policy may ensure you’re covered for the correct amount. Not all insurers will offer agreed value policies so be sure to shop around for one that suits your needs.

What is a modified car?

A modified car is a vehicle where alterations have been made, changing it at all from the manufacturer’s specifications. This can include the body of the car, wheels, engine, suspension and appearance. Modifications may be cosmetic, to improve the handling or performance, or to assist with the mobility of someone with a disability.

With Compare the Market, coverage may be available for vehicles with minor modifications that don’t require certification. If you have made any major modifications that affect the safety, suspension, engine or handling of the vehicle, our panel may be limited or unable to provide you with coverage. In that case, you will need a specialist insurer.

Understanding car insurance for modified cars

Does car insurance cover modifications?

What are classed as modifications on car insurance?

Are modified cars more expensive to insure?

What is the best car insurance for modified cars?

Are disability car modifications covered by car insurance?

Legal vs illegal vehicle modifications

Before modifying your vehicle, it’s important to understand the legality around modifications and how they must comply with the Australian Design Rules and/or the Australian Vehicle Standard Rules.

What car modifications are legal in Australia?

What car modifications are illegal in Australia?

Meet our car insurance expert, Adrian Taylor

Adrian Taylor
Executive General Manager – General Insurance

As Executive General Manager of General Insurance at Compare the Market, Adrian Taylor is passionate about demystifying car insurance for consumers, so they have a better understanding of what they’re covered for. Adrian’s goal is to make more information available from more insurers, to make it easier to compare and save.

1 Queensland Government. Provisional license restrictions. Last updated October 2022. Accessed August 2024.
2 New South Wales Government. Prohibited vehicles for P plate drivers. Accessed August 2024.
3 South Australian Government. License conditions. Last updated July 2024. Accessed August 2024.
4 Victorian State Government. Prohibited Vehicles FAQS. Accessed August 2024.