What is the Infiniti Q45?
The Q45 was Infiniti’s flagship luxury sedan and the car that introduced the brand in the United States. Its distinctive, minimalist styling set it apart from more traditional luxury cars of its era. The first generation also offered Full-Active Suspension, an early example of the advanced technology that became part of the model’s identity.
Q45 generations
The first-generation G50 ran from 1990 to 1996. It launched Infiniti’s flagship sedan, with a 4.5-litre V8 and available Full-Active Suspension. The second-generation Y33 followed from 1997 to 2000, using a 4.1-litre V8. After a gap, the third-generation F50 was sold from 2002 to 2006, returning the Q45 to the top of Infiniti’s sedan range. Across three generations, it remained the brand’s large luxury four-door.
Engines and fuel consumption
The Q45 used petrol V8 engines from 4.1 to 4.5 litres. The US EPA rates its best combined result at 18 MPG, with the lowest listed consumption at 13.1 L/100 km. Canada’s lowest NRCan 5-cycle figure is 13 L/100 km. EPA and Canadian 5-cycle procedures differ, so their figures are not directly equivalent.
Where was the Q45 sold?
The Q45 appears in US EPA figures for 1990–2006 and Canadian NRCan figures for 1995–2005. Its three generations were sold in both markets. As Infiniti’s original flagship sedan, it helped establish the brand’s identity.
Questions and answers
What kind of car was the Infiniti Q45?
It was Infiniti’s large luxury sedan and original flagship model.
How many Q45 generations were there?
Three: the G50 from 1990–1996, the Y33 from 1997–2000 and the F50 from 2002–2006.
How economical was the Infiniti Q45?
The best combined US EPA figure was 18 MPG, with lowest listed consumption of 13.1 L/100 km. Canada’s lowest NRCan 5-cycle figure was 13 L/100 km.
