Taking the car out is easy but a liiiiil confusing, i can do it no sweat, and apply it in a render =P, i make my own renders most of the time, i once made a sig of my pic and rendered it and made an awesome sig =P Look:
Its bad quality cuz i saved it on my mobile.. since my old PC was screwed. Thats why i put it on my mobile and it became shit quality.. anyways =P, juss clearing the idea lol. Ill try n render it out n make u a sweet sig out of it.