Very cool video. I've never seen it before. The T25 syncro has near 50/50 weight distribution after they moved the fuel tank to above the gearbox. The T4 and T5 have 60 or so % over the front wheels.
Yup its was all fine and dandy till after the t25 then they got slated I really wish the bay syncro had made it past the prototype stages
They put the syncro bay in for army evaluation in the late 70's alongside the vw iltis and it ran rings around it and excelled in every way. But the army still chose the iltis.