4 doors could mean the usual 2 forward-opening doors and 2 rearward-opening doors, like the Ranger and F-150 extended cabs. Heck, for the 2004-2008 F-150 they ONLY had 4-door options available, as the “regular” cab had 2 tiny (6" or so) rearward-opening doors and the two forward-opening doors were the smaller ones…