For one day, yes, it can cost €60-70 but the price per day goes way down once you rent it for a week. That's what I do (3 kids, no car, only renting for holiday

For one day, yes, it can cost €60-70 but the price per day goes way down once you rent it for a week. That's what I do (3 kids, no car, only renting for holidays). Of course if you need a car for 2 days every week that doesn't quite work, and you're better off owning one. But many people living in cities don't really need a car (can't find a reference right now, but I think less than half of Paris residents own a car).