you don't need a speedo. But a good loocking girl in the back and watch what happens

10 miles hairs are moving slowly
20 miles hairs start to fly horizontal
30 miles her scirt moves up and exposes
here legs
40 miles here shirt gets unbuttoned
50 miles she is holding on to here bra
60 miles youre truck is flat out and you have no time to watch the girl


Fritz Peyerl
Turner valley, Alberta
http://www.badmileage.com