Infiniti M45 is a 4 door convertible sedan executive car which was manufactured by Japanese automaker Nissan in 1989. It was being produced in four generations. First generation was introduced in 1990. Second and third generation was launched in 2003 and 2006 respectively. Similarly, fourth generation was available in 2011. It was based on Nissan FM platform. It was powered by 3.0 L VG30E V6 engine. It had 4 speed RE4R01A automatic transmissions. It was successor to Infiniti I and Infiniti Q45.This car was assembled in Japan. This car was also known as Infiniti Q70.