Watched the video and at 0:44, the teardrop hole in the spokes on the Ashtaroth wheel looked filled in (sand/dirt deposits). Very cool 6x6 the AUS are testing.
You are quite correct TCao (as was I)!
Obviously above is from the video. Here is a clearer shot from a non-armoured Australian Defence Force (ADF) G-Wagen
I hope that this helps clear it up.
By the way these are no longer under test but are in use. I was fortunate to be out at MB Australia to see these forward defence vehicles just after they arrived (pre final fit-out).
I was also fortunate to drive one of the two original 6x6 prototypes before they went into production (this was written up in one of the early editions of Jorg Sand's G-Wagen glossy mag)
John