1967, Robert Opron oversaw a number of studies to redesign the tail of
the DS. Each model here represents two alternative designs. The picture
at top left shows a study which anticipated the design of the CX. The
essential correctness of Flaminio Bertoni's original design is self
evident when looking at these proposals, none of which came close to
the purity of the original. These models are equipped with the redesigned front which was first mooted in 1964 although not fitted to production cars until the 1968 model year.