it could be the majority of the idiots too afraid to drive at 70mph (oh no it's too fasssst!) stay off the highways reducing the number of accidents. give me a good group of people comfortable at 100mph and up and enjoy smooth driving from a to b.
http://ca.geocities.com/jdmusedcarsale/img/1992NissanSkylineGTR_BNR32_SV6_01_01.jpg