Used 2004 INFINITI M45 Sedan

List price range


  • Brawny V8 engine, capable handling, plenty of luxury features, reasonable price.


  • Limited rear-seat legroom and trunk space, complicated center stack controls.

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Edmunds' Expert Review

A capable Japanese sedan that makes a worthwhile alternative to Germany's midsize stalwarts.

2004 Highlights

Infiniti has moved the CD changer from the glovebox to the dash. Several of last year's options are standard for 2004, including heated outside mirrors, an auto-dimming rearview mirror with Homelink and compass, two-position memory for the driver seat, a tire-pressure monitoring system and a full-size spare tire. The navigation system (with voice recognition technology) is now available as a stand-alone option.

Consumer reviews

Read what other owners think about the 2004 INFINITI M45.

Overall Consumer Rating

Most helpful consumer reviews

It's going to be a classic
Bought my 2004 brand new right after my BMW 540i came out of the shop, Again. It is an awesome car that is not well known. I took a BMW 530 to task with no problem. No one knows what this "sleeper" can do. Most don't even know what the M45 is. At 70 MPH this car is asking you to please let it go faster. At 100 MPH its asking to please open it up all the way. During that time it feels and handles like a German car and the stereo is going, so pay attention to your driving. If you can't handle or appreciate very fast cars, go get a something else. This one is a dark horse among many wannabes. At today's prices its a steal. They won't be so low for long.
A lot of car for the money!
Enrico Gamboa,03/19/2004
I wanted a Mercedes E500 since I've been driving Mercedes cars three years, but it stickers for $63k with the options I like. I decided to look at the 2003 Infiniti M45. The performance is fantastic! It looks great inside with plenty of new tech equipment and the exterior design is classic and modern. It has 340 hp compared to 302 hp in the Mercedes E500 and $17000 less on the MSRP. WOW!!! I love this car.
The Best Infiniti I Have Ever Owned
This Infiniti looks beautiful and is a pleasure to drive. The car is well built and safe. Passengers tell me it is comfortable as well. The spacious trunk is great, and the navigation system has helped me out in many instances. I am a proud owner of a M45 Infiniti!
Best Performance and comfort
Best Sedan performance plus quality for the money in America, specially 1-2 yr old used one. Smooth and quiet at high speeds. Great stereo.
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Features & Specs

16 city / 22 hwy
Seats 5
5-speed shiftable automatic
340 hp @ 6400 rpm
See all Used 2004 INFINITI M45 Sedan features & specs
More about the 2004 INFINITI M45
Used 2004 INFINITI M45 Sedan Overview

The Used 2004 INFINITI M45 Sedan is offered in the following styles: 4dr Sedan (4.5L 8cyl 5A).

What's a good price on a Used 2004 INFINITI M45 Sedan?

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Which used 2004 INFINITI M45 Sedans are available in my area?

Used 2004 INFINITI M45 Sedan Listings and Inventory

Simply research the type of used car you're interested in and then select a prew-owned vehicle from our massive database to find cheap used cars for sale near you. Once you have identified a used or CPO vehicle you're interested in, check the Carfax and Autocheck vehicle history reports, read dealer reviews, and find out what other owners paid for the Used 2004 INFINITI M45 Sedan.

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap used, or certified pre-owned (CPO) 2004 INFINITI M45 Sedan for sale near you.

Can't find a used 2004 INFINITI M45 M45 Sedan you want in your area? Consider a broader search.

Find a used INFINITI M45 for sale - 4 great deals out of 23 listings starting at $13,724.

Find a used INFINITI for sale - 10 great deals out of 16 listings starting at $23,087.

Find a used certified pre-owned INFINITI M45 for sale - 5 great deals out of 7 listings starting at $20,930.

Find a used certified pre-owned INFINITI for sale - 6 great deals out of 10 listings starting at $24,469.

Compare prices on the Used INFINITI M45 for sale in Ashburn, VA to other major cities

Should I lease or buy a 2004 INFINITI M45?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out INFINITI lease specials
Check out INFINITI M45 lease specials