Owning a car vs Zipcar?

I currently own a car in the city, in a walkable area. I walk to/from work and the grocery store, etc.

I rarely use my car on weekends for a weekend trip, or the odd scenario where I need to go to the suburbs or move something. I don’t pay for parking, but I do pay $50/mo for insurance.

Would it be worth it to get rid of my car and use zipcar instead? Looking for some opinions and anecdotes from others who have done either of these, and if you’re for or against it.