Infiniti FX45

The Infiniti FX45 was introduced along with the FX35, which is essentially the same crossover with a different engine. Both models build on the same FM platform, which the Nissan 370Z also shares.

More on the Infiniti FX45
Infiniti FX45 Origins

The Infiniti FX45 is a midsize luxury crossover sport utility vehicle (SUV), manufactured by Infiniti, a luxury vehicle brand under Nissan, since 2003. The FX45 replaced the Infiniti QX4, and it measures noticeably larger than its predecessor. The FX45 launched along with its direct competitors: the Volvo XC90 and Porsche Cayenne.

About the Infiniti FX45

Since its introduction in 2003, the Infiniti FX45 has come to be known by several nicknames, with the two most popular ones being "bionic cheetah" and "giant scarab." The crossover design aims to blend the rigid lower body of an SUV perfectly with the elegant and smooth upper body of sports GT and classic sports cars. In terms of performance, the engineers at Nissan intended to combine the functionality of an SUV with the performance of a sports car. The Infiniti FX45 succeeds in both aspects, which comes as a surprise for most automotive enthusiasts. The FX45 achieves in reality what other carmakers can only claim, and it represents the only real new-genre vehicle among other luxury SUVs that either look like magnified wagons or small SUVs.

In spite of its novelty, not many Infiniti FX45 vehicles have been sold. The FX series still continues to this day, but the FX45 model in particular only saw production during the first generation. The modern second generation incarnation of the Infiniti FX45 is called the FX50. While in production, the FX45 remained less popular than its less powerful sibling, the FX35. The inadequate sales can be attributed to the fact that the FX sacrifices several elements found in its competitors. These elements include cargo space and a third-row seat.

Infiniti FX45 Features

The 2008 model Infiniti FX45 marked the end of the first generation FX. It came in a single trim level with all the necessary equipment. As per its name, a 4.5-liter V-8 engine powers the Infiniti FX45. The engine delivers 320 hp and 335 lb-ft of torque. This offers more than the pre-2006 models, which contain a 315 hp and 329 lb-ft V-8 engine of the same displacement.

The vehicle comes standard with a five-speed automatic transmission gearbox, along with other features such as anti-lock disc brakes, an all-wheel-drive system, and traction and stability control. The vehicle borrows the looks of the Infiniti G35 sport sedan, but this shows only one of its similarities to sports cars. The Infiniti FX45 sits on 20-inch wheels and a sport-tuned suspension, both of which give it one of the best handlings in its class.

The throaty V-8 engine in the Infiniti FX45 allows the vehicle to accelerate from standstill to 60 mph in 6.3 seconds; it can reach 100 mph in about ten seconds more. The FX45 completes a quarter mile stretch in 14.8 seconds and has an electronically limited top speed of 115 mph.

Infiniti FX45 Evolution

The Infiniti FX45 debuted in 2003 along with the FX35, which comes with a rear-drive and all-wheel-drive system. The FX45, on the other hand, only offers an all-wheel-drive system. The 4.5-liter VK45DE V-8 engine has 32 valves, with four valves per cylinder. The camshafts are micro-finished, and its head and block are made of aluminum alloy. Low-friction molybdenum coats the pistons, and the intake and exhaust valves are made of titanium. All these elements, along with the presence of a super-silent, single-stage drive chain and continuously variable valve timing, make the engine very efficient. However, only 1,598 units of the Infiniti FX45 saw production by the 2007 model year. This amounts to just a tenth of the number of FX35 models that sold.

The Infiniti FX45 received a facelift for 2006, with certain standard features and brand new options. The facelift includes a redesigned wheel, front bumper, and grille and paint schemes on the outside. The interior of the vehicle shows off an updated color screen and center console. Many options on earlier models became standard in 2006. These features include the seven-inch color display, RearView monitor, a 300-watt Bose audio system, an Advanced Airbag System, heated front seats, and leather seat covers.

The Infiniti FX45 also received additional upgrades such as 20-inch wheels, a Bluetooth system, a 10-way power driver’s seat, and eight-way power for the passenger’s seat. The revised suspension boasts a four-wheel independent sports-tuned suspension and new dampers.

The facelift model Infiniti FX45 marks the first passenger vehicle in the U.S. market to include a lane-departure warning system. This new safety system uses a camera that tracks lane markers and alerts passengers in the vehicle through an audio buzzer if the vehicle drifts across lanes unintentionally.

Select an Infiniti FX45 Year

2008 Infiniti FX45

SUV, Utility/Offroad

For the 2008 model year, Infiniti offered the FX45 for the sixth year.

2007 Infiniti FX45

SUV, Utility/Offroad

The 2007 Infiniti FX45 is a unique SUV, touted as a mix between a sports car and a premium SUV.

2006 Infiniti FX45

SUV, Utility/Offroad

In the oversaturated world of SUVs, it is hard to make a vehicle that stands out.

2005 Infiniti FX45

SUV, Utility/Offroad

The 2005 Infiniti FX45 is midsize crossover SUV manufactured by Japanese automaker, Nissan Motor Company under the luxury brand name Infiniti.

2004 Infiniti FX45

SUV, Utility/Offroad

The 2004 Infiniti FX45 is a SUV with plenty of character and lots of heart.

2003 Infiniti FX45

SUV, Utility/Offroad

The 2003 Infiniti FX45 is an SUV with plenty of character and lots of heart.