Mach 5 Car Cake from Speed Racer

I made this cake of the Mach 5 from Speed Racer for a friend for his birthday! I'm so happy with how it turned out. It's alternating layers of yellow and butter pecan cake with cream cheese icing that has chopped walnuts in it and then all covered in marshmallow fondant and hand painted. The tires are rice cereal treats covered in the fondant.