If you drive a car, chances are you will be trying to get somewhere at a certain time. So it is important that you have a functioning clock in your vehicle to anxiously check every once in a while. Don't drive yourself crazy; there are several ways to add a new clock to your car. Some are as simple as sticking one on your dash, while others are meant to be wired to the electrical system of your car. If you are looking for a factory replacement clock for your dash, you need to have your car model in mind when you are shopping around so that the new clock will fit.