My red '67 'Vert has white stripes, and it's neither a 400 HO nor a 326 HO. According to the build sheet and the billing information, I believe you could order Rally Stripes with any combination, including the 400 HO Motor option (L67?).

As for the right to the "Formula" name, I recall - though it's hazy - that the word "Formula" was owned by what is today F1 (The Formula One Group, I believe) and the rights to it were not owned by Pontiac until 1969 (or possibly 1970) when they also owned the rights to the name Trans Am. Somewhere else in memory I also recall that the word "formula" may have appeared in one of their Wide Track print ads, but not attached to the name of the car.