The conceptual direction for the 1989 INFINITI Q45 was established 4 years prior to its arrival, in the form of Nissan’s “CUE-X” Concept, which debuted at the 1985 Tokyo Motor Show. Although at the time the concept was positioned as an exploration of Nissan’s “next-generation luxury high-performance sedan,” not an INFINITI, a side-by-side comparison of the “CUE-X” concept and subsequent production Q45, reveals more than coincidental similarities.