Infiniti is well aware of the need to fill the void left by the Q45. The brand attempted this with the Q80 Inspiration concept unveiled at the 2014 Paris auto show, and though the coupe-like show car never made it to production it at least showed us that Infiniti was prepared to take a more radical approach to its flagship sedan

Its 550-horsepower, all-wheel-drive hybrid powertrain, with an estimated fuel efficiency of over 40 mpg, might be a game-changer in the luxury segment if the model can arrive to market this way.