The “M” nameplate has been used on various mid-luxury cars from the Infiniti luxury division of Nissan.
The first iteration was the M30 Coupe/Convertible, which were rebadged JDM Nissan Leopard.
After a long hiatus, the M nameplate was used for Infiniti’s mid-luxury sedans (executive cars). First was the short-lived M45 sedan, a rebadged version of the Japanese-spec Nissan Gloria. The next generations, the M35/45 and M37/56/35h/30d, became the flagship of the Infiniti brand and are based on the JDM Nissan Fuga.