2004 Infiniti Q45

  • 2004 Infiniti Q45 Base Sedan

    Base Sedan

    • MAX MPG
    • SEATS
    • ENGINE
      4.5L V8
    • MSRP
Get A Dealer Quote

Compare Dealer Clearance Prices and SAVE

  • Review

2004 Infiniti Q45 Review

Affordable, fast, and luxurious add up into one impressive sedan.

Reviewed by Automotive on


Infiniti succeeded in its goal to create a Japanese option to the midsize German luxury sedans that seemed to dominate the market. While the 2004 Q45 isn’t the fastest or most exciting design available, it does have plenty going for it. This car is reliable, with a dependable powertrain and lots of character, especially in the cabin. It appears Infiniti didn’t spare any expense when it came to designing and equipping the interior of this car. Lots of leather and wood ensure a nice, elegant look. The cabin is spacious as well, a good thing for larger American drivers and passengers.

The Range

Body Styles: sedan
Engines: 4.5-liter V-8
Transmissions: five-speed automatic
Models: Infiniti Q45 Luxury, Infiniti Q45 Premium

What's New

There are two major changes for the 2004 Infiniti Q45. For that model year, the rearview backup camera is offered standard, and the five-speed automatic transmission receives a revised manual shift mode.


If there is one complaint about the appearance of the 2004 Infiniti Q45, it’s that the car is a little uninspiring from the outside. The body design for this model is rather boring if the truth be told. While there isn’t anything wrong with it, the design lacks spark or a lot of visual interest. However, it is a nice looking sedan with large headlights and bumpers painted to match the rest of the body. The sides are slightly curved with sleek lines and back window slopes into the trunk and rear end of the car gracefully.


When it comes to the interior of the 2004 Infiniti Q45, luxury is the name of the game. The company made every attempt to add as much comfort and convenience into the cabin. What the Q45 lacks on the outside, it certainly makes up for on the inside. The interior is sufficiently spacious for several adults, and the front seats are bucket style leather seats. The driver’s seat has several heating options and offers a power lumbar support system as well. Both the driver and the passenger seats can be adjusted in several ways for optimum comfort. In the folding back seat, a center armrest is present with storage space. This section of the cabin also has ventilation ducts as well. Naturally, the Q45 is equipped with power accessories. The door locks, windows, and mirrors are powered for convenience. This car also features a remote window control as well. Cruise control, air-conditioning, and a charcoal air-filtration system are standard for the Q45, too. Infiniti keeps up the luxury with the wood trim on the doors, dash, and center console. The steering wheel and the shift knob also feature wood as well as leather for a very old world look and feel. The Bose audio system features eight speakers and a six-CD player stereo. One subwoofer is standard with this system as well.

Performance & Handling

Equipped with a 4.5-liter, V-8 engine and a five-speed automatic transmission, this car offers the comfort and sophisticated handling one would expect from a luxury sedan. The Q45 performs well on the highway, and the suspension system absorbs most of the bumps and ruts in the road with ease. The engine supplies sufficient power, but don’t be surprised to learn the Q45 isn’t necessarily the fastest option in its class.


Infiniti has a reputation for adding as many safety features as possible to its products and the Q45 is no exception. The sedan is fully loaded with several standard safety features, including four-wheel anti-lock brakes, dual front and rear head airbags, and front side mounted airbags as well. Stability and traction control are available on both the Luxury and the Premium trim levels. Self-leveling headlights and tire pressure monitoring system are part of the package as well. Head restraints are standard. These restraints are intended to limit the severity of whiplash to the driver and passengers in the event of an accident.

EPA Fuel Economy

Infiniti Q45: 16/22 mpg city/highway

You'll Like

  • Affordable
  • Lots of standard luxury features
  • Lots of cabin room
  • Comfortable and luxurious cabin environment
  • Impressive, powerful V-8 engine

You Won't Like

  • Boring exterior design
  • Too soft suspension
  • Complicated interior controls

Sum Up

Affordable, fast, and luxurious add up into one impressive sedan.

If You Like This Vehicle

  • Cadillac CTS
  • BMW 5-series
  • Cadillac Seville

Similarly Priced Vehicles