1998 Infiniti Q45 Sedan Review | Edmunds.com

1998 Infiniti Q45 Sedan

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Certified Pre-Owned (CPO) is a category of used car. Often late-model vehicles, they have been inspected, refurbished, if necessary, and are under warranty by the manufacturer.
Infiniti Q45 Features and Specs

Features & Specs

  • Engine 4.1 L V 8-cylinder
  • Drivetrain Rear Wheel Drive
  • Transmission 4-speed Automatic
  • Horse Power 266 hp @ 5600 rpm
  • Fuel Economy 16/22 mpg
  • Bluetooth No
  • Navigation No
  • Heated Seats No

Review of the 1998 Infiniti Q45

  • Info is not yet available.

  • Safety
  • Pros

    Powerful rear drive luxury sedan offers distinctive styling and sophisticated interior appointments. Costs less than much of the competition.

  • Cons

    Not as refined as the Lexus LS400.

  • What's New for 1998

    The Q45 gets front seatbelt pre-tensioners. No other changes for Infiniti's flagship.

Full 1998 Infiniti Q45 Review

What's New for 1998

The Q45 gets front seatbelt pre-tensioners. No other changes for Infiniti's flagship.

What Others Are Saying

Customer Reviews

Forced retirement

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Vehicle: 1998 Infiniti Q45 4dr Sedan

Just had to retire my 1998 Q45 due to being rearended and totalled. Car had 232000 on it and was overall very reliable. Not a single problem until 155,000 Miles. Fuel Injectors, Coils, and just age were starting to cause more problems, but I think it would have gone to 300,000 if not for accident. Overall, fun to drive, reliable, and excellent value as cost to own is only a little expensive with gas costs. But it proved to be safe as I hardly felt the hit from behind and he was going about 35 miles an hour.

Best sleeper car ever made

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Vehicle: 1998 Infiniti Q45 4dr Sedan

Now that I'm at the point of retiring from Q45s it is safe for me to say that this is one of the best vehicles ever made. You can get them for 4k with 90k miles in 100% condition from an 80 year old doctor, then drive the crap out of them. We have bmw's but I take the q45 when it's highway time. A really great vehicle and the ultimate sleeper.

Best car ever made

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Vehicle: 1998 Infiniti Q45 4dr Sedan

I have had my Infiniti Q45 for 10 years. It has 190,000 miles on it and the only thing that has ever been wrong (other than standard maintenance) on it is the alternator at 135,000 miles. It is simply an amazing vehicle and is a VERY underrated vehicle. I finally bought a new Nissan this year but gave the Q45 to my 16 yr old daughter. After 4 months, I want my Q45 back! Best car Ever!

Superb ride

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Vehicle: 1998 Infiniti Q45 4dr Sedan

I must confess that I was a HUGE Lexus fan and have owned the LS 400 and GS 400. Unfortunately I totaled my GS and we didn't want a car note, and couldn't find another GS that matched our price point. So, my husband bought the '98 Q for me and told me that I would not be disappointed. Well, how sweet it is! What a beautiful ride and it moves quickly when I need it to. A whole lot of power and luxury for very little cost. It is definitely an under rated vehicle. After owning Lexus V8s, this Q can role just as hard, if not harder! Oh and I forgot to mentioned that it currently has 138,000 miles on it.

1 of 1 people found this review helpful

The jewel of jewels

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Vehicle: 1998 Infiniti Q45 4dr Sedan

I bought my Q45 10 years ago and it now has 188,000 miles on it. I am amazed at the reliability of this vehicle. It is far and away the best car I've ever owned. It still runs perfectly- like new today. I keep waiting for something major to go wrong so I can justify trading it in but it continues to run and operate perfectly. It handles well, is very comfortable, powerful and quiet. The only item that ever failed was the alternator at 125,000 miles. I just need to tell the world that this car is the UNBELIEVABLY reliable. I am finally considering trading it in only because I've had it for 10 years and I want something different. I'm sure I'll be disappointed with it's replacement. Its a 10!


by on
Vehicle: 1998 Infiniti Q45 4dr Sedan

Just bought my brother-in-law's Infiniti after watching him enjoy it for 10 years. Love driving it. Love the interior feel, the sturdiness of the car, the immaculate condition. Love the feeling of luxury. Looking forward to keeping it another 10 years.

Talk About The 1998 Q45

1998 Infiniti Q45 Discussions See all Started By

Regarding Infiniti depreciation, you have a good point. I am now looking to buy a used Q45 (1998) and I have seen a lot of great deals. These cars originally sold for almost $50k and just 3 1/2 years ...

"You are right. However, the LS400 and, to an even greater extent, the Q45, have horrible resale compared to a Mercedes E-class, which costs roughly the same, brand new."...

Hi Fellow Q45 suffers. I posted a problem with my fuel pump making a high pitch noise on the first listed posting sight. The title of the posting is "Fuel Pump Noise". If any of you are h...

Gas Mileage


  • 16
  • cty
  • 22
  • highway
Calculate Yearly Fuel Costs
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