3D Realistic Environment

hello ,
i haven't posted a 3d work for long time , but this is what i came up with at last .
i was trying to reach a realistic 3d environment so i can use to present my 3d cars models , my first try was on :[link]
but i think it wasn't so good , so i made this one .
modeled with : 3ds max 9
rendered with : V-ray RC3
render time : 02h:22m:13s , on 1440*720
C&C are so welcome .

check out night render [link]