Tyrkytettiinhän bx:kin muotoiluakik ensin Volvolle mutta ei kelvannut.

Onko siis todellakin niin, että DS on se viimeinen oikea Sitikka?

It has often been argued that the Citroen CX and GS 'copied', or were greatly influenced by, the Pininfarina 'Aerodinamica' Berlina design prototypes originally created for British Motor Corporation (BMC) — latterly British Leyland. While it would be brave to deny that there is no similarity between the CX, GS and these one-off design specials from Pininfarina, a balanced analysis clearly reveals significant differences in the shaping, sculpting, dimensions and major styling details (such as the front and rear panels) of the Citroën cars in comparison to the Pininfarina cars. Indeed, one might as well argue that if the Citroën shapes are so-called 'copies', then what about the Lancia Gamma, Rover SD1, and the AlfaSud? For these cars also contained some very similar styling elements to the two Pininfarina BMC Aerodinamica cars.

Citroën have always denied that they saw or 'copied ' the Italian design study, and the manner in which Robert Opron, Jean Giret, Jacques Charreton, Michel Harmand and the Citroën styling team scaled and sculpted the GS (and the later CX) shows distinct and very clear differences in panel shapes, window graphics and detailing. Only perhaps around the dimensions and angles of the rear side doors and windows at the C-pillar zone is a likeness between the GS and the Pininfarina car more obvious. Certainly the rear end of the GS — its sloping roof and tail — are differently shaped to the Pininfarina design concept, lacking channels and troughs either side of the rear windscreen. The frontal motifs also differed (Rover's SD1 was far closer to the Aerodinamica cars in its design cues).

The Citroën archives show a DS revision styling model being worked on by Opron and Michel Harmand. In this, Opron was adding a sleek tail and Kamm-back to the DS, and the rear side windows, roof, and tail design for this DS revision categorically signal the rear end shapes Opron used in the GS and CX. This revised tail for the DS was the subject of a drawing as early as 1967 by Michel Harmand, and it may have been drawn and built before the Pininfarina Aerodinamica was publicly shown. It was also a GS precursor, and might be cited as evidence that Citroën reached the GS/CX rear-end design at its own hand. Jean Giret was also styling a car that was a GS precursor, and this also featured the shaping and detailing that were close to the later Citroën and Pininfarina shapes.