I am so excited.

Finally, the day has arrived! I will be leaving tomorrow evening for ed. Due to less vacation time, it is a very short stay. I will be in Munich on sunday afternoon. Monday morning I will be picking up the car at 7.30 (cant wait to get my hands on it). Go straight to Neuschwanstein castle hopefully that should be a good drive! (suggestion), then visit Nurumberg, return the same night and go to Marienplatz.
I have a plane to catch next day at 11:30 am. Do you think I would have enough time to drop the car at (Munich) Harms and make to the airport on time?? please need help on this.
I would really appreciate any suggestions for my travel plans. Thanks