Check this out! I bet you could adapt this to a mini and go anywhere. The video is long but well worth viewing. The first half of the video shows the "snow motor" on a Fordson tractor, but the second half shows it on a old chevy. This is simply "awesome"! If you think you are different driving a mini, how different would you be with this under your mini? http://www.liveleak.com/player.swf?autostart=false&token=568_1233111054
there was also a screw type RC car out that worked like that. cant remember the name. but interesting concept none the less!
