Hi Kris82, very valid point and one that has puzzled me too. Assuming what was said about ending with rear wheel drive only as a result of the problem is correct (which is by no means certain), then maybe the centre diff on the Fiesta is not of the usual epicyclic gear type with clutch pack to vary the degree of locking, but maybe it uses two clutch packs each controlling the flow of torque to the front and rear axles. This would permit infinite degree of variability in the proportion of torque send to the front and rear axles. I am not sure how reliable such device on a current WRC car will be, but to the best of my knowledge it is used on the current Focus RS to distribute the torque between the two rear wheels in place of the usual epicyclic type rear differential.
I need to watch the footage from the first Sunday stage (only seen the power stage so far) and see if Ogier’s car really behaves like a rear wheel drive one and if the statement to that effect is likely to be correct or just an expression by a frustrated driver (if of course my memory is correct and it came from Ogier).
Regards,
Nick