It's not a mechanical diff it's an electronic one using XDS to control the front and rear using a haldex centre differential. (A really good system none the less)
So I am surprised to see (if its true of course ) that Seat Cupra 4x4 will have not XDS on front but the same VAQ as the FWD CUPRA cars + haldex for RWD. Thats what I have in specification of the car in my agreement with dealer.