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2004
INFINITI Q45

Starts at:
$52,400
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New 2004 INFINITI Q45
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Available trims

See the differences side-by-side to compare trims.
  • 4dr Sdn Luxury
    Starts at
    $52,400
    17 City / 23 Hwy
    MPG
    5
    Seat capacity
    Gas V8
    Engine
    Rear Wheel Drive
    Drivetrain
    See all specs
  • 4dr Sdn Premium
    Starts at
    $61,600
    17 City / 23 Hwy
    MPG
    5
    Seat capacity
    Gas V8
    Engine
    Rear Wheel Drive
    Drivetrain
    See all specs

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2004 INFINITI Q45 2004 INFINITI Q45

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Expert 2004 INFINITI Q45 review

our expert's take
Our expert's take
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Full article
our expert's take

Q45 is all about power but suffers from tech toy overload

Is too much technology a badthing? A world-class luxury sedan like Nissan Motor Co.’s 2004 Infiniti Q45 has to make you wonder. We love features like the standard RearView Monitor, which could help prevent backing over trash cans and toddlers. But the controls and center-mounted video display for climate and audio systems are way too confusing, and we never did quite get the hang of the voice-recognition system.

And, yes, we do know how to program our VCR.

We tested the standard Q45 luxury sedan, priced at $52,945, including a $545 destination charge. The only option on our test vehicle was a $60 trunk mat.

HE: I was a big fan of the original Q45 when it landed here back in 1989. Now that car didn’t look or feel anything like the competition. But over the last 15 years, two things happened to Infiniti’s flagship sedan. It got way more amenities and technology. And it lost an awful lot of its edgy personality. That’s not necessarily a bad thing. Today’s Q is one of the nicest, most luxurious premium sedans on the market, at a surprisingly attractive price — if you’re in the market for a $50,000-plus vehicle. Most people who are prepared to spend that kind of money, however, don’t want their wheels to get lost in a crowd. And therein lies one of my biggest complaints with the Q45. The technology barrier is also a concern.

SHE: The style barrier is an even bigger concern to me. We live in a fabulous neighborhood of auto executives who often bring their own test cars home. The week we had the Infiniti was the same week that one of our neighbors brought home a brand-new 2005 Cadillac STS. I found myself wishing that the bland Q45 was as sexy and stylish as the STS. I also know from the doctors in our neighborhood that they love the Infiniti because it’s a stealth luxury car. It doesn’t scream money. So you have to decide what kind of person you are — ostentatious like me or low-key like our doctor-neighbors.

HE: Hey, most of those docs are still into power, and the Infiniti is all about power. One of the car’s most impressive features is the powertrain, which is an area where Nissan and Infiniti really have excelled in recent years. Under the hood of the Q45 is a big, twin-cam, 4.5-liter V-8, which makes 345 horsepower and 333 pounds-feet of torque. It’s coupled with a smooth-shifting five-speed automatic that has a manual-shift mode. The combination is powerful and quite pleasant — just right for high-speed, long-distance touring. Fuel economy is only so-so, at 17 miles per gallon in city driving and 23 on the highway.

SHE: I thought the instrument panel was a mess, especially that video-arcade display in the center stack. Too hard to figure out how to work the climate controls and the audio system. Thank goodness the RearView Monitor — which uses a small camera mounted near the rear license plate — comes on automatically when you put the car in reverse. This is a feature that should be mandatory on tall SUVs and minivans. But I never figured out how to get the Infiniti’s voice-recognition system to work. I’m philosophically opposed to any vehicle that requires a tutor to help you understand how to operate the basic systems. This is a complaint we’ve heard from other consumers — including at least one physician — about the Q45.

HE: We haven’t really talked about all the things that are just right on the Q45. The bird’s-eye maple trim is exquisite. The seats are simply sensational — comfortable and supportive. There is all kinds of room, especially for rear passengers. The car’s suspension is supple, and the ride is controlled without feeling overly firm. I really did enjoy putting miles and miles on the Q45.

SHE: You have to compliment Infiniti for all the terrific standard safety features. In addition to the rear-view camera, the Q45 comes with front and rear de-curtain air bags, plus front-seat active head restraints that help reduce whiplash. Even the rear seats have adjustable headrests. You also get antilock brakes with emergency brake assist, plus traction control and stability control. If you want to stretch the point, the “Gatling gun” xenon headlamps, with seven tubelike lenses on each side, are also a safety feature because they really illuminate the road at night.

HE: I have to admit that I’m not the target demographic for the Q45, and not just because I lack an M.D. If I had $50,000 to spend, I’d probably be looking at a BMW and possibly a Mercedes, partly because of the cachet associated with those older European brands and partly because I love driving BMWs in general. But if you’re into that “stealth wealth” mode that Anita talked about, you’ll feel just as pampered, with very little sacrifice in performance, in the Infiniti Q45.

2004 INFINITI Q45 review: Our expert's take
By

Q45 is all about power but suffers from tech toy overload

Is too much technology a badthing? A world-class luxury sedan like Nissan Motor Co.’s 2004 Infiniti Q45 has to make you wonder. We love features like the standard RearView Monitor, which could help prevent backing over trash cans and toddlers. But the controls and center-mounted video display for climate and audio systems are way too confusing, and we never did quite get the hang of the voice-recognition system.

And, yes, we do know how to program our VCR.

We tested the standard Q45 luxury sedan, priced at $52,945, including a $545 destination charge. The only option on our test vehicle was a $60 trunk mat.

HE: I was a big fan of the original Q45 when it landed here back in 1989. Now that car didn’t look or feel anything like the competition. But over the last 15 years, two things happened to Infiniti’s flagship sedan. It got way more amenities and technology. And it lost an awful lot of its edgy personality. That’s not necessarily a bad thing. Today’s Q is one of the nicest, most luxurious premium sedans on the market, at a surprisingly attractive price — if you’re in the market for a $50,000-plus vehicle. Most people who are prepared to spend that kind of money, however, don’t want their wheels to get lost in a crowd. And therein lies one of my biggest complaints with the Q45. The technology barrier is also a concern.

SHE: The style barrier is an even bigger concern to me. We live in a fabulous neighborhood of auto executives who often bring their own test cars home. The week we had the Infiniti was the same week that one of our neighbors brought home a brand-new 2005 Cadillac STS. I found myself wishing that the bland Q45 was as sexy and stylish as the STS. I also know from the doctors in our neighborhood that they love the Infiniti because it’s a stealth luxury car. It doesn’t scream money. So you have to decide what kind of person you are — ostentatious like me or low-key like our doctor-neighbors.

HE: Hey, most of those docs are still into power, and the Infiniti is all about power. One of the car’s most impressive features is the powertrain, which is an area where Nissan and Infiniti really have excelled in recent years. Under the hood of the Q45 is a big, twin-cam, 4.5-liter V-8, which makes 345 horsepower and 333 pounds-feet of torque. It’s coupled with a smooth-shifting five-speed automatic that has a manual-shift mode. The combination is powerful and quite pleasant — just right for high-speed, long-distance touring. Fuel economy is only so-so, at 17 miles per gallon in city driving and 23 on the highway.

SHE: I thought the instrument panel was a mess, especially that video-arcade display in the center stack. Too hard to figure out how to work the climate controls and the audio system. Thank goodness the RearView Monitor — which uses a small camera mounted near the rear license plate — comes on automatically when you put the car in reverse. This is a feature that should be mandatory on tall SUVs and minivans. But I never figured out how to get the Infiniti’s voice-recognition system to work. I’m philosophically opposed to any vehicle that requires a tutor to help you understand how to operate the basic systems. This is a complaint we’ve heard from other consumers — including at least one physician — about the Q45.

HE: We haven’t really talked about all the things that are just right on the Q45. The bird’s-eye maple trim is exquisite. The seats are simply sensational — comfortable and supportive. There is all kinds of room, especially for rear passengers. The car’s suspension is supple, and the ride is controlled without feeling overly firm. I really did enjoy putting miles and miles on the Q45.

SHE: You have to compliment Infiniti for all the terrific standard safety features. In addition to the rear-view camera, the Q45 comes with front and rear de-curtain air bags, plus front-seat active head restraints that help reduce whiplash. Even the rear seats have adjustable headrests. You also get antilock brakes with emergency brake assist, plus traction control and stability control. If you want to stretch the point, the “Gatling gun” xenon headlamps, with seven tubelike lenses on each side, are also a safety feature because they really illuminate the road at night.

HE: I have to admit that I’m not the target demographic for the Q45, and not just because I lack an M.D. If I had $50,000 to spend, I’d probably be looking at a BMW and possibly a Mercedes, partly because of the cachet associated with those older European brands and partly because I love driving BMWs in general. But if you’re into that “stealth wealth” mode that Anita talked about, you’ll feel just as pampered, with very little sacrifice in performance, in the Infiniti Q45.

Factory warranties

New car program benefits

Basic
4 years / 60,000 miles
Corrosion
7 years
Powertrain
6 years / 70,000 miles
Roadside Assistance
4 years / 60,000 miles

Certified Pre-Owned program benefits

Age / mileage
Months from In-Service Date (ISD): Less than or equal to 60 months from ISD | Vehicle Mileage: Less than or equal to 15,000 Miles | Greater than 15,000 Miles but less than or equal to 60K miles
Basic
6 years / 75K miles from original ISD | 6 years / unlimited miles from original ISD
Dealer certification
167-point inspection

Consumer reviews

3.8 / 5
Based on 6 reviews
Write a review
Comfort 4.2
Interior 4.5
Performance 4.5
Value 4.0
Exterior 3.8
Reliability 4.0

Most recent

2004 Q45 Unique as Can Be.

The car is extremely quiet on highways but noisy over some small bumps because the tires are made for performance driving and are not quiet. I am switching to very quiet tires. It is a 2004 Q45 premium with 90 miles. I have only paid for normal wear and tear and the car has been problem free. It is fast - 0 to 60 around 5.5 to 6 seconds and corners like a sports car. I never have to switch the suspension to the performance mode.
  • Purchased a New car
  • Used for Commuting
  • Does recommend this car
Comfort 4.0
Interior 5.0
Performance 5.0
Value 5.0
Exterior 5.0
Reliability 5.0
1 person out of 1 found this review helpful. Did you?
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Affordable luxury

The car is now exactly 2 decades old, registered in Jan 2003. I've had no engine repairs except the starter and a couple of hoses. I bought the car in 2015 with 65K miles on it and now, Feb. 2023, it's still only at just under 102,000 miles. (I'm retired; no need to commute in it). Mine is the Premium trim which means it has cooled seats, power trunk lid, power rear window shade, headlamp power adjustment and more. Someone complained about the harsh ride for a big car. I took care of that by switching from 18-in wheels to 17-in and asking the tire dealer for the softest-riding tires. My mileage remains the same, 24 mpg highway if you cruise at 70 mph. Mileage decreases by 1 mpg for every 5 mph increase in speed after 70. I abused the car in a very harsh winter once, and that's when the ball bearings and the front suspension went, and eventually (not related to winter abuse) I did have to replace the steering rack. All told, after 8 years and 37,000 miles of driving, I've had $10K in repairs. (Again, almost no engine repairs, and no transmission problems). That's $1250 a year average. But then, the car IS 20 years old, and there's nothing wrong with it now, and performance and comfort are great, and it actually looks and drives more like a 4-year-old car. Someone compared this to a Mercedes, but the Merc will crap out on you after 100,000 miles! A flagship Nissan won't.
  • Purchased a Used car
  • Used for Transporting family
  • Does recommend this car
Comfort 4.0
Interior 5.0
Performance 5.0
Value 5.0
Exterior 4.0
Reliability 3.0
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FAQ

What trim levels are available for the 2004 INFINITI Q45?

The 2004 INFINITI Q45 is available in 2 trim levels:

  • Luxury (1 style)
  • Premium (1 style)

What is the MPG of the 2004 INFINITI Q45?

The 2004 INFINITI Q45 offers up to 17 MPG in city driving and 23 MPG on the highway. These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on vehicle options, trim level, driving conditions, driving habits, vehicle maintenance, and other factors.

Is the 2004 INFINITI Q45 reliable?

The 2004 INFINITI Q45 has an average reliability rating of 4.0 out of 5 according to cars.com consumers. Find real-world reliability insights within consumer reviews from 2004 INFINITI Q45 owners.

Is the 2004 INFINITI Q45 a good Sedan?

Below are the cars.com consumers ratings for the 2004 INFINITI Q45. 83.3% of drivers recommend this vehicle.

3.8 / 5
Based on 6 reviews
  • Comfort: 4.2
  • Interior: 4.5
  • Performance: 4.5
  • Value: 4.0
  • Exterior: 3.8
  • Reliability: 4.0
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