Maybe for the wow factor ,having a rhd mustang in the usa would be a show stopper .I have seen a few aussi rhd cars over there at shows ,and the traffic stops for a look .Seen a xy gt ,xb gt ,a L J torana ,a holden statsman , a couple of monaros hk etc a valiant charger,a couple of holden utes hj / hx models .And quite a few english cars and other rhd countries cars .Have seen a late model commodore ute converted to lhd by using a gto / monaro left hand dash and a late model monaro / gto converted to rhd using our rhd dash . just wow factors and it would be the same here if you saw a 1973 L J torana here LHD .