Add-on covers are where car insurance quotes quietly balloon from a reasonable base premium into something considerably larger, and insurers, or the agents selling their policies, do not always explain clearly which add-ons genuinely suit your specific car and driving pattern versus which ones are simply easy upsells that add to the commission without adding much real protection for you. Going through them one at a time, with an honest sense of how you actually use your car, tends to save both money and confusion.
Zero depreciation cover, discussed in more detail elsewhere on this site, is usually the first add-on worth considering seriously, particularly for cars under five years old, since it removes the depreciation deduction on parts during a claim and can meaningfully increase what you actually receive after an accident. Engine protection cover, sometimes called engine secure add-on, is the second one worth genuine consideration, especially if you live somewhere prone to waterlogging during monsoon season, since standard comprehensive policies typically exclude engine damage caused by water ingress, and a single hydrostatic lock repair can be an expensive affair.
Roadside assistance cover sounds appealing on paper, towing, minor repairs, fuel delivery, battery jump starts, all bundled for a small annual addition to your premium. Whether it is genuinely worth paying for depends heavily on whether you already have access to something similar for free or cheap, many car manufacturers include a few years of roadside assistance with a new car purchase, and some credit cards or memberships bundle it in as well. Paying twice for overlapping coverage is a common, easily avoidable waste.
Before adding roadside assistance to your policy, check what your car manufacturer's warranty already includes, and whether any membership or credit card you hold offers something similar. Overlapping cover here is common and easy to avoid once you actually check.
Return to invoice cover is particularly relevant for newer cars, since it bridges the gap between IDV, which already accounts for depreciation, and the car's original on-road invoice price, in the event of total loss or theft. Without this add-on, a car stolen in its second year would only pay out the depreciated IDV, leaving a real gap versus what it would cost to buy the same car new again. For a car within its first two to three years, this gap can be substantial enough that return to invoice cover is genuinely worth its modest additional cost, while for an older car the gap narrows to the point where the add-on stops making financial sense.
Consumables cover is a smaller but often overlooked add-on that fills in a gap most owners do not realise exists until a claim reveals it, items like engine oil, nuts, bolts, and washers used during a repair are typically not covered by a standard comprehensive policy, and the cost of these consumables gets billed to you separately even on an otherwise covered claim. For a car that sees regular use and occasional repairs, this add-on is inexpensive and tends to pay for itself over even a single moderate claim involving parts replacement.
Personal accident cover for passengers, beyond the mandatory cover for the owner-driver already built into every policy, is worth adding if your car regularly carries family members or is used for longer highway trips, since the base mandatory cover typically only protects the person in the driver's seat, leaving other occupants without dedicated coverage unless this add-on is specifically purchased. Weighed against the modest additional premium it usually costs, this is one of the add-ons that genuinely earns its place for most family cars, regardless of the car's age or value.