## Class: Vehicle

***Attributes***:
- - -
* Model_year (Integer)
* Color (String)
* Miles_per_gallon (float)
* Current_fuel_level (float)
* Fuel_tank_size (Integer)
* Transmission_type (String)
* Current_passengers (integer)
* Passenger_capacity (integer)

***Methods***:
- - -
* Current_gas_percentage: (Current_fuel_level divided by Fuel_tank_size)
* Change_color: (paint car, update Color)
* Seats_remaining: (Passenger_capacity minus Current_passengers)
* Car_age: (Model_year minus current year)
* Add_passenger: (add number of passengers to Current_passengers)