This is a demonstration of how outfits were raced on speedway tracks in Australia. Most tracks were between 1/3 and 1/2 mile on oiled cinders/clay. When you had 4 or 6 of these together then you really had a noise!!
http://www.youtube.com/watch?v=FSeShSFBaLw
http://www.youtube.com/watch?v=FSeShSFBaLw