What is the name of long car?

There isn't a single "long car" name. Cars come in many sizes and lengths. To give you a more helpful answer, could you tell me what you're looking for?

For example:

* Are you thinking of a specific car model? (e.g., "What's the name of the long black car with fins?")

* Are you looking for a car known for its length? (e.g., "What's the name of the longest production car?")

* Do you have a specific purpose in mind? (e.g., "What's the name of a good long car for road trips?")

Once I know what you're looking for, I can give you a more accurate answer.