???? ???????????? ??????? ??? ????? ???????? ???? ?? ?????? ??????? ?? ??????? ??? ??????????.?? ??? ?????? ??? ?????. ??????? ?? ?? ?? ?????????? ??? ?? ??????????? ???? ????????????.Just by fitting a next engine/gearbox unit through the rear, a rudimentary 4×4 system might be created. Early prototypes had separate gear levers and clutch programs