what is the program...?

[GrayFox]

i have been seeing alot of coustom stuff for games like new cars or something, and i was wondering if there was a program where you can make stuff like that?

[Gizzmoe]

There are several good modellers/renderers.

Commercial
3DSMax: http://usa.autodesk.com/adsk/servlet/index?id=5659302&siteID=123112
Rhino: http://www.rhino3d.com/

Open-Source
Blender: http://www.blender.org