Hy there,please give us some wire because I think that you have some problems....and when you are making a render try to add some lights so we can see certain corners and o ther details....The car looks ok,but i have indentified some problems
here you have something that you shouldn't have . Try to avoid triangles on the mesh and try to make a smooth shape. We know that later we will apply a smooth modifier but it will not smooth the entire mesh if we didn't cared a little bit. And for the fog lights, try to add some edges around them and make a smooth rounded shape .