It is called shutter lag, all camera's have it, but the better (more expensive) camera's have shorter delay time. (My Canon 30d has a shutter lag of about 0,25s including time to autofocus, and 0,065s prefocussed)

Most digital compact camera's have too long shutter lag for sport / cars.

Nothing u can do about it, exept buying a new camera.

Edit to add: you could try to pre-focus, most compact cameras have slow autofocus.