if you notice on the 1st wireframe also that the actual wires look identical to the 3rd one..... the problem is in the phong shading value of 100 degrees (everything below 100% gets smoothed , which pretty much includes every man made object EVER) so you have to split it up into lots of little seperate bits to keep the lines crisp..... if yawl moan at me enough i'll do an indepth tutorial on it......... (at the moment i'm too drunk tho)