""""Most every Japanese car I've ever changed the fuel pump on had a removable cover. WTH is wrong with our boys and girls in Detroit???""""
Remember the 'Pinto inferno'? The 'pipe' leading to the tank from the gas cap was INSIDE the car so a rear ended hit would cause the gas to burst thru the hose and spray the whole inside of the car. While properly designed flap could prevent this, I bet the engineers are 'gun shy'