I dunno… the Microchange car on which Cliffjumper was based was supposedly a deformed 924 Turbo. That Porsche model debuted in 1978. I always thought Cliff looked more like a 944, which didn’t come out until 1982. I think Tomica’s first Porsche die cast car was released in 1979. None of those years provide anniversaries of any significance except for the 944.