So, I have just found out (thank you Hippie) that the tracked AMX-30 is faster offroad than the wheeled AMX-10 RC, and that it wasn't always this way and apparently it got changed to be like this sometime pre SouthAG. Why? It doesn't really make sense given the tanks being wheeled is done specifically for speed/off-road mobility in exchange for armor.
Either making the AMX-30 B2s and other tracked AMX a little bit slower offroad or making the AMX-10 RCs and other wheeled AMX a bit faster would fix this.
The VAB/VIB are also French wheeled vehicles and are all 85 off road, so the -10 RCs being 85 or 80/75 (given they have more armor and a heavier gun) would make some sense, but if this is too fast and constitutes a balance problem, just reversing it to be the other way around so -10 RCs are 70 and -30 Bs are 65 would instantly make so much more sense.
The Spanish AMX-30 Es are also only 55 off-road but that division and those tanks are still quite alright in terms of viability. Balance is important ik but this continuity discrepancy makes my brain hurt ):