diff --git a/panda.rb b/panda.rb
new file mode 100644
index 0000000..37bd54f
--- /dev/null
+++ b/panda.rb
@@ -0,0 +1,46 @@
+class Vehicle
+  @@wheels = 4
+  attr_accessor :color, :make, :model
+  
+  def initialize(color, make, model)
+    @color = color
+    @make = make
+    @model = model
+  end
+
+  def update(hash)
+      unless hash[:color].nil?
+        @color = hash[:color]
+      end
+      unless hash[:make].nil?
+        @make = hash[:make]
+      end
+      unless hash[:model].nil?
+        @model = hash[:model]
+      end
+  end
+
+  def wheels
+    "This vehicle has #{@@wheels} wheels."
+  end
+end
+
+automobile = Vehicle.new("Red", "Porsche", "911")
+puts automobile.wheels
+puts "Created an automobile with the following information:
+Make: #{automobile.make}
+Model: #{automobile.model}
+Color: #{automobile.color}"
+
+update_hash = { :color => "Green", :make => "Toyota", :model => "Tacoma" } 
+automobile.update(update_hash)
+puts "Updated the automobile's make model and color:
+Make: #{automobile.make}
+Model: #{automobile.model}
+Color: #{automobile.color}"
+
+automobile.update({:color => "Black"})
+puts "Updated the automobile's color only
+Make: #{automobile.make}
+Model: #{automobile.model}
+Color #{automobile.color}"
diff --git a/tiger.rb b/tiger.rb
new file mode 100644
index 0000000..9ba350f
--- /dev/null
+++ b/tiger.rb
@@ -0,0 +1,38 @@
+class Vehicle
+  @@wheels = 4
+  attr_accessor :color, :make, :model
+  
+  def initialize(color, make, model)
+    @color = color
+    @make = make
+    @model = model
+  end
+
+  def update(hash)
+      unless hash[:color].nil?
+        @color = hash[:color]
+      end
+      unless hash[:make].nil?
+        @make = hash[:make]
+      end
+      unless hash[:model].nil?
+        @model = hash[:model]
+      end
+  end
+
+  def wheels
+    "This vehicle has #{@@wheels} wheels."
+  end
+end
+
+class Automobile < Vehicle
+
+end
+
+class Motorcycle < Automobile
+  def self.wheels
+    "This vehicle has 2 wheels."
+  end
+end
+
+puts Motorcycle.wheels