Okay do you know how it works?
I happened to see the "my car" while I was walking
Like every other car sharing program. Here's the sign up link https://app.citycar.co.il/#/register
Not exactly.
No membership fee.
Hourly Charge. Depends on size of car. My car has variable priceing depending on time of day, City Car is set. Starts at 6 shek/hour in mycar, 10 shek in City.
Plus milage charge, again depends on size of car.
Round trips only. You must return the car to the area were you picked it up.
Each service has deals for longer rentals ex: 7 hours+ the per kilometer charge decreases, you can take it over shabbos and just pay for the time befroe and after shabbos.
Return it on time or you will be charged a late fee. ( last I checked, city's was 30 shekel plus a shekel a minute.)
Unless someone else has reserved the car, you can extend your rental before time expires.
You will need to send them your passport and blue entrance visa, if you are driving on a foreign passport, so set up you account before you need it.\
MyCar has a newer fleet, with waze (alggedly) in all cars. CityCar has a larger fleet. If you're planing on relying on the car share while your here, signup for both, so you have more of a chance of anavailable car. If you don't really speak hebrew, use the app/website to reserve a car, not the phone system.