I have two kids under four and therefore we watch a lot of kids movies. A favorite is Madagascar 2. One of the characters is Moto Moto, a fat, stupid, self obsessed hippo. Before you ask, no, thats not the reason for taking on the name.
He has a funky song - "I like em big, i like em round, i like em chunky......", pretty much describes the Patrol we drive (especially when you try to park it).