Add-ons should match the car’s age, use, and location. Check what each add-on actually pays for. Zero-depreciation cover limits depreciation deductions on eligible parts when a claim is settled, subject to the policy’s terms and limits. Return-to-invoice cover can make up the gap between the insured value and the car’s invoice price in specified situations. Roadside assistance can help if the car breaks down during a journey. For engine protection and consumables cover, check which repairs or expenses are included. EV owners should read the battery cover wording, including exclusions and claim requirements.