Start storage preparation with a thorough wash and a coat of wax or sealant, since dirt and contaminants left on paintwork for months can stain or etch the finish. Clean the interior too, remove any food or rubbish that could attract pests, and treat leather surfaces so they do not dry out over winter. Change the engine oil and filter before storage rather than after: used oil contains acidic contaminants that can attack internal surfaces while the car sits, while fresh oil protects them. Check coolant, brake fluid, and other levels, and fix any small leaks now, because a leak that is minor in daily use can leave a damaging puddle over months.

Fuel needs attention as well. Fill the tank nearly full and add a fuel stabiliser, then run the engine briefly so the treated fuel circulates through the system. A full tank leaves less room for condensation to form inside, and stabiliser prevents the fuel from degrading and gumming up injectors. If the car will sit for more than a few months, consult the manufacturer's guidance for your specific model, since hybrid and high-performance fuel systems sometimes have particular requirements. Note the storage date and mileage in a log, so you know exactly what was done when the car comes out again.

The battery is the most common storage casualty. Modern supercars draw power even when switched off, for alarms, trackers, and computer systems, so an unattended battery can go flat within weeks and suffer permanent damage. Connect a smart battery maintainer, sometimes called a trickle charger, that is rated for your battery type; these hold the charge at the right level without overcharging. If no power supply is available, disconnect the battery, though you should check first whether doing so affects alarms, trackers, or computer settings on your model. For hybrid cars, follow the manufacturer's high-voltage storage instructions carefully.

Tyres suffer when a heavy car sits in one position for months, because the contact patch flattens and can leave a permanent flat spot, especially on low-profile performance tyres. Inflate the tyres a few PSI above the normal recommendation before storage, and if the car will sit for a long time, consider tyre cradles that spread the load, or axle stands that take the weight off the tyres entirely. Use the correct jacking points if you lift the car, and never rely on a single jack for long-term support. Leave the parking brake off, with the car in gear or in park and chocked, since brake pads can seize to the discs over a damp winter.

Where the car sleeps matters as much as how you prepare it. A dry, secure, climate-controlled space is ideal, because stable temperature and humidity protect paint, leather, electronics, and metalwork alike. If climate control is unavailable, a dry garage with a dehumidifier is a good alternative, and a breathable car cover keeps dust off without trapping moisture underneath; avoid plastic covers, which trap condensation against the paint. Block obvious entry points for rodents, such as exhaust tips and air intakes, with breathable covers, and check the car periodically through winter rather than sealing it away and forgetting it.

Bringing the car back is a process, not a single moment. Remove covers and blocks, check tyre pressures and fluid levels, reconnect or check the battery, and look underneath for leaks or pest damage. Start the engine and let it reach operating temperature before driving, then drive gently for the first miles while brakes, tyres, and fluids return to normal behaviour. A short inspection or service after a long lay-up is money well spent, since it catches any storage-related issue before it becomes a roadside problem.