car_loader.rb

require 'csv'
module CarLoader

  def self.get_cars_from_csv(filename)
    # The result is being passed to the new dealership.
    # I need to return some useful data from this method...
    hashed_data = CSV.read(filename, {:headers => true, :header_converters => :symbol})

    mapped_data = hashed_data.map {|row| row.to_hash}

    cars = mapped_data.map! do |car|
      Car.new(car)
    end

    cars
  end
end