Nissan's premium brand, Infiniti, launched the fourth generation of the M-Series sedan in 2010 as a 2011 model. It was aimed directly at the BMW 5-Series, but with a touch of Japanese styling.

Nissan's premium brand Infiniti introduced the third generation of the M-Sedan in 2005 based on the Japanese Nissan Fuga.

While it wasn't the family's flagship, the 2003 Infiniti M45 was like a muscle car from the '60s brought back to life with modern technologies inside.