Is this the first time you've registered your vehicle?
Yes, it's a new car.
First time registrations need to pay the registration and vehicle plate fees.
I'm wondering if it's possible to install seats behind the driver?
you must also install seatbelts that meet NY State Occupant Restraint Law requirements
is all I need to know about how to register the car?
yes follow the recommendations
If you used a van or truck without the required modifications?
then you must register it in the ' Commercial ' registration class
What are the camping equipment that is installed behind the driver?