1976 saw the arrival of silhouette, of group 5 "special production car" category. with it, lancia switched to the world championship for makes, and accepted the challenge from porsche who took their monstrous 935 turbo and bmw, with their reliable 3.5 csl using the lancia stratos turbo, prepared by facetti, under the supervision of parkes. sadly, the stratos was not up to the challenge and following the death of parkes in the august of '76, the collaboration between facetti and lancia ended, along with the silhouette program. his last commitment for lancia saw him win the giro d'italia, with the silhouette version.