Very funny Johan. I have never seen the movie, but it looks like it might be funny.
Christian - when dealing with tanks, armored cars and halftracks, the crews would normally use a name that corresponded to the Company they belonged. For example an armored car assigned to Company D 82nd Recon Bn could use "Dorothy" or "Dagwood" or "Danger", etc. I have not seen photographic evidence that indicates that was continued with support vehicles such as ambulances. The name you use should have some significant to you - that's what Soldiers do. Some guys will name things after their first girlfriend, wife, kid, mom, hometown or something important to them. GEN Gerhardt's jeep was called "VIXEN TOR". The name has no connection to the unit and really have no idea why he called it that. Obviously it was something important to him.
I kinda like "cross eyed sue", its unique and you have a story to go with the name. You could even embellish the story a little, "no matter how many times I tighten, the light moves back to cross eyed. Rather than fight it, I embrace it" - something like that. Half of what we do by setting up displays is to present something interesting to people. With a name like "cross eyed sue", I would imagine you will get people asking about the name and they will remember your truck. Just my thoughts.