I invited readers to find the links between the 1963 Hillman Imp, the 1970 Cadillac Eldorado and 1995 Peugeot 406 (I showed a coupé). This is my solution:
It’s not the shortest path. Peugeot manufactured the 406 coupé. The 406 replaced the 405 which Peugeot manufactured at Ryton-in-Dunsmore, in England. That factory formed part of the Rootes group which Chrysler bought in 1967, including the Hillman brand. The Imp was part of group’s range. One of the designers of the Imp was Mike Parkes who died while working on development of the Lancia Stratos (not in the car, at the time of). Marcello Gandini designed the Stratos but also cars for Maserati who were once part-owned by Chrysler. He also designed the Renault Super 5 which succeeded the original Renault 5 (or Le Car). The Le Car was sold in the US by AMC for whom Larry Shinoda worked as a consultant. One of Shinoda’s colleagues was Bill Mitchell and he was the chief designer of the 1970 Cadillac Eldorado.