Originally Posted by torontojay

1. Your US DL is fine.
2. Suburban hotels offer free parking, but in downtown Toronto, it will be $24/day or more. You won't find all day street parking in downtown Toronto, but there are some lots where you can park for around $10/day. If you are south of Gerrard Street in downtown Toronto, day lots will cost even more.
3. Most major car rental companies allow you to take a car to Canada, but you must return it to US location. One way rentals are not permitted. Double check before you rent.


Don't forget that you need a passport to cross the border.

If you drive from Manhattan to Toronto, you'll pass through Niagara Falls. You may want to spend a night there instead of Toronto, as hotels are considerably cheaper.