If renting a car, be sure to ask if you are allowed to drive the car over the Green Line. There are companies that won’t allow you to do so.
Also, ask for a Shabbat discount. Not every place has it. Basically it means that you pay only for the insurance over Shabbat, but not for the car. If you do end up driving the car on Shabbat and get in an accident, the insurance doesn’t cover it. (Budget has a Shabbat discount.)