3D renderings for project cars...

[jasburbak]

Hey, i've seen plenty of 3D renderings (photoshop i guess? im not that computer pro myself) of project cars.... i was wondering if anyone knew what program was used to develop these pictures, or how they were developed... im about to begin working on a '67 Vette and i would like to customize the suspension height, exterior panels, two tone paint job maybe and fender flares, etc... how it would look like before beginning on the project... any clue or help would be greatly appreciated...