If you plan to stay inside the city limits of Toronto then there’s no need to rent a car. Parking can be expensive and hard to find, and efficient subways, buses, and streetcars make getting around the city a breeze. Most of the public transit has very frequent service, and some lines even run 24 hours a day.
If you plan to leave Toronto to visit Niagara Falls, Algonquin Provincial Park, or other attractions, then renting a car may be your best option. Canadian car rental companies accept U.S. driver’s licenses which means that renting a car in Canada is just as easy as it is in the states. Simply choose your car, show your license, and sign the rental agreement.