An extended car warranty policy or a mechanical breakdown policy pays for sudden and accidental mechanical breakdown of your vehicle. This coverage is usually sold be a dealership when buying a vehicle and it protects your wallet against unexpected vehicle repairs and breakdowns. You can also get this protection after you buy a vehicle, there are plenty of options online. Whether you have a car, truck, or RV, you can get mechanical repair coverage for your vehicle by purchasing an extended warranty product or mechanical breakdown policy.