Hi I missed this post up until you posted in my thread earlier at the moment its looking quite good but it just needs a couple of tweaks to make things look better most of them you have pointed out on your own like the windshield, but the bottom of the front bumper IMO needs to be forward instead of curving under like you have it now. I would also suggest you select all your objects and goto edit polygons -> Normals -> soften/harden -> options box then set the number to 0 and hit OK that will get rid of the shading issues you have going on atthe moment around the lights and such areas