Car Insurance Groups Explained

What Are Car Insurance Groups?

Every car in the UK is usually placed into an insurance group from 1 to 50. Group 1 cars are generally viewed as lower risk to insure, while group 50 cars are usually more expensive, powerful, specialist, or costly to repair.

The group is not the only thing that decides your premium, but it can be a useful starting point when comparing cars before you buy.

Why Insurance Groups Matter

• Repair costs — Cars with expensive parts, specialist labour, or long repair times can sit in higher groups.
• Performance — Faster acceleration, higher top speeds, and powerful engines can increase risk for insurers.
• Security — Factory alarms, immobilisers, tracking devices, and theft risk can influence how a car is grouped.
• Vehicle value — More expensive cars can cost more to replace after theft or a total loss claim.
• Safety features — Driver assistance and crash protection can affect repair complexity and claim costs.

How to Find Your Car's Insurance Group

You can usually search by make, model, trim, engine size, fuel type, and year. Be as specific as possible, because different versions of the same car can fall into different insurance groups.

Can You Lower the Cost of Insurance?

• Compare before renewal — Do not assume your renewal price is the best available price.
• Choose the right cover level — Compare comprehensive, third party fire and theft, and third party only where available.
• Set a realistic excess — A higher voluntary excess may reduce the premium, but make sure you could afford it after a claim.
• Be accurate with mileage — Overestimating mileage can sometimes push up the cost.
• Review optional extras — Breakdown cover, legal cover, courtesy cars, and protected no-claims may change the final price.

Should You Avoid Higher Insurance Groups?

Not always. A higher-group car may still be affordable for an experienced driver with a clean record, secure parking, and low mileage. The best approach is to compare quotes using the exact vehicle details before committing to buy.