Okay, i continued my work on the lights,i gave it a lil texture(took 2 days to figure it out,im bad with this ) and i also added lil' sweet foglights ^^
I think renders look better than the CMX Viewer and maybe there is someone else thinking like you do.
AFAIK only Blender is free 3D software but some people can make some nice renders using it.
And there is also 3DS Max, which isn't free and not a crap.