Help us avoid name regret!

We are picking up our first GSD this afternoon! As of right now, his name is Audi. This morning my husband brought up the fact that it’s our last chance to change it before he comes home. We have gotten a few negative comments about his name when we tell friends & family what we picked out. Remarks about the car brand, asking if he’s a girl, and pointing out it’s similar to one of our children’s names.

Any input? Other suggestions? Must be 4 letters in length. Picture of our fur ball.