You should get an insurance cover for your car the moment you purchase it since it’s at its highest market value and the depreciation costs are yet to set in. Get insurance provides private cars insurance plans from all insurance companies in Pakistan. These companies have a depreciation rate included within their policies.
Depreciation is applied when you make a claim for the replacement of parts including glass and plastic items. Since your car depreciates in value every year, the general rule of thumb is that the value/price of a part also reduces in price by a certain percentage every year. In case of a claim, the company applies that percentage to reach a value for reimbursement. Most companies have a depreciation chart they use to calculate the value of depreciation but here is a general illustration you can expect: