If you look at NYC as a whole (i.e. all 5 boroughs), 45% own cars, so a minority but still a lot of cars.
ADDED: Manhattan is about half that percentage but, again, still a lot of cars and people.
ADDED: Manhattan is about half that percentage but, again, still a lot of cars and people.
And for context, the average US household owns about 1.9 cars. Not an apples-to-apples comparison, but its easy to see that NYC car ownership is MUCH lower than the nation on average. [https://www.bts.gov/archive/publications/highlights_of_the_2...]