I had found some picture with the driver standing next to the side and it *appeared* (angle of view can distort things) that the top of the head arrived just below the "weld line".
The thing is, at a smaller scale, the base of the figure and the fact that humans tend to be made chunkier tends to make the tank look a bit small to me.
Someone on facebook pointed me to a 3D printed of the Hyena he made and I think the slightly larger size looks better.
https://www.facebook.com/photo.php?f...&theater&ifg=1