?? ?????????? ??????????? ?????????? ??? ?????? ??? ???????? ???????? ????????? ??? ???? ????????.????????? ??????? ???????? ????????? ??? ?????????? ??? ?????????? ??? ??????????By simply fitting a 2nd motor/gearbox unit across the rear, a rudimentary 4×four method can be created. Early prototypes experienced different equipment levers and clutch