diff --git a/src/oop/oop1.py b/src/oop/oop1.py
index b7268c5263..964e9fa2f7 100644
--- a/src/oop/oop1.py
+++ b/src/oop/oop1.py
@@ -17,3 +17,25 @@
 #     pass
 #
 # Put a comment noting which class is the base class
+
+#base class "Vehicle"
+class Vehicle:
+    pass
+        
+class FlightVehicle(Vehicle):
+    pass
+
+class Airplane(FlightVehicle):
+    pass
+
+class Starship(FlightVehicle):
+   pass
+
+
+class GroundVehicle:
+    pass
+class Car(GroundVehicle):
+    pass
+
+class Motorcycle(GroundVehicle):
+    pass
diff --git a/src/oop/oop2.py b/src/oop/oop2.py
index 29d3e481fe..f1106984cf 100644
--- a/src/oop/oop2.py
+++ b/src/oop/oop2.py
@@ -4,12 +4,19 @@
 # object is constructed.
 
 class GroundVehicle():
-    def __init__(self, num_wheels):
+    def __init__(self, num_wheels = 4):
         self.num_wheels = num_wheels
+    def drive(self):
+        return "vroooom"
 
     # TODO
 
-
+class Motorcycle(GroundVehicle):
+    def __init__(self, num_wheels=2):
+        super().__init__(num_wheels=num_wheels)
+        
+    def drive(self):
+            return "BRAAAP!!"
 # Subclass Motorcycle from GroundVehicle.
 #
 # Make it so when you instantiate a Motorcycle, it automatically sets the number
@@ -26,6 +33,13 @@ def __init__(self, num_wheels):
     GroundVehicle(),
     Motorcycle(),
 ]
+print(vehicles[0].drive())
+print(vehicles[1].drive())
+print(vehicles[2].drive())
+print(f' The number of wheels on a motorcylce is {vehicles[2].num_wheels}')
+print(vehicles[3].drive())
+print(vehicles[4].drive())
+
 
 # Go through the vehicles list and print the result of calling drive() on each.