This hybrid luxury sedan was introduced for the 2012 model year as Infiniti’s first true performance-oriented hybrid version of its M-series executive sedan. It joined the M37 and M56 in the third-generation M lineup and was positioned as the most efficiency-focused member of the range without giving up the rear-wheel-drive, long-hood luxury-sedan character that defined the series. Infiniti marketed it as a driver’s hybrid, emphasizing a parallel hybrid system rather than a conventional economy-first approach.
For 2013, the nameplate returned for a second and final model year with only incremental changes. The broader M sedan family remained on sale through 2013, but for 2014 Infiniti renamed the M lineup as the Q70, and the hybrid version continued under that new badge rather than as the original nameplate. As a result, this specific nameplate had one continuous production run from 2012 through 2013.
In the marque’s history, the model is notable as a rare luxury hybrid built around a performance-sedan formula, and it represents the last chapter of the long-running M name before Infiniti’s global naming shift to the Q-series.