A wet dry shop vacuum is a handy tool to have for your car garage. Whether you use your car garage for repair work or minor car maintenance, spills cannot be avoided. A wet dry shop vacuum will enable you to take care of any type of liquid or dry spill. It is not recommended that you use the vacuum for flammable liquids such as gasoline, and oil. In addition, most shop vacuums can also blow so, it would be just as easy to blow debris out of your garage as it would be to vacuum it.
For more info, see A Car Vacuum Buying Guide