I don’t watch a lot of NASCAR but seeing AKUS is blowing money being the lead sponsor on a car is wild. I guess since Australia isn’t actually getting the submarines for a long time (or is it not at all?) they’re free to do this.
Link to an image of the #6 and #17
Buildsubmarines is some site talking up AKUS
I don’t think most Americans are going to even register it’s subs for Australia though. Maybe that’s also the point, get Americans excited about building an extra sub or two as a treat for Australia. (Well really to your point Australia still wouldn’t actually get new subs)