Hello there. Been away with college semester and exams but I'm back. Trying to model my beloved Renault Clio with polygon tools. I've made my first iteration on the mesh and now I'm having a little problem: imagine I want to add details to the back of the car. Since the faces of the front are showing, the view gets crowded with edges I don't currently want to see. My idea is to hide some front faces but when I do that the whole object disappears. Suggestions? I know I can extract the faces and hide them since they then become a separate object but I'm sure there must be a better way to achieve what I want...

P.S. -> the blueprints I got don't fit perfectly so don't mind the apparent disalignment.