14" barracuda wheels/ wheelcovers.

As was typical with Chrysler at the time everything was available as an option (that's how they made profit).

What we call "Formula S" 14" wheel covers were an option and there was even a 13" version for both Barracudas and Valiants.

In '66 the 14" wheels were an option for both Barracudas and Valiants, 13" was stardard equipment except on the Formula S which of course had 14" wheels that were 5.5" wide. The 14" wheels were fitted when optional disc brakes were ordered. The 14" wheels were offered in both 4.5" and 5.5" width (Formula S cars coming with 5.5")

The option lists can be seen here -> http://www.earlyabodyforum.com/board/messages/394/1012.html?1137472055