When you get a car, you need to get some insurance that the car will work fine and if it doesn’t, then you won’t have to be the one to fix it. A drivetrain car warranty is a warranty that covers the mechanical parts of your vehicle and not much else. It will not cover a flat tire or an accident but if something happens to the mechanical components underneath the hood which are usually the smaller components, then you can be assured that it will be covered and the manufacturer will have to come up with the money to fix it.