CorelDRAW / PhotoPaint design. The shadow on the side of the car was created in PhotoPaint; just paint a black blob (with polygon shape) that you can correct with the (feathered) brush and eraser, use object feathering to remove hard edges and tinker with transparency in the Object Control Panel to make it realistic. The .cdr and .cpt files can be downloaded from the link below (compressed into a .rar-file), so you can get an idea how the image was made and tinker with it.
http://isocult.com/Car 2.rar