Single-cabs have external lashing hooks, king and double-cabs instead have a smooth outer bcargo/b bed with internal lashing hooks. A rear step bumper that provides easier access to the load bay when the tailgate is closed is optional on king- cab. ... CLIMBING aboard the NP300 for the first time was rather like stepping back in time to the days when pick-up trucks were working vehicles rather than tax-cheating style machines for bestate/b agents and accountants. ...