Another Example for instance of self

Car.rb

class Car 
  attr_accessor :color, :year, :make, :model
  def initialize(color, year, make, model)
    @color = color
    @year = year 
    @make = make
    @model = model
  end
  
  def get_vin
    puts self
  end
  
  def years_old
    Time.now.year - self.year
  end
end