If you’re considering a New York City car rental for your travels, you have a good number of choices. All the larger car rental agencies have a location at the airports and many have locations right in Manhattan.
If you live in Manhattan, consider Zip Car which is essentially a time-share for cars. Once you join, you’ll receive a key card that gives you access to a fleet of vehicles that you can use for as little as an hour to run errands or visit friends outside the city. Gas and insurance are included so you just pay a flat fee.