Looks like any one involved in motorsports should boycott Big O Tires and anything its parent company owns, plus should encourage their friends to do the same.. none of this sounds confusing to me.. I have not personally used any Dart products, however this goes beyond personal usage. Looks like any one involved in motorsports should boycott Big O Tires and anything its parent company owns, plus should encourage their friends to do the same.. none of this sounds confusing to me.. I have not personally used any Dart products, however this goes beyond personal usage.